Sample PDF Of Std 11 And 12 Based MHT CET Triumph Physics .
Written in accordance with the latest MHT-CET Paper Pattern which includes topics based onStd. XII Sci. and relevant chapters of Std. XI Sci. (Maharashtra State Board)MHT-CETTRIUMPHontentPHYSICSSalient FeaturesIncludes chapters of Std. XII and relevant chapters of Std. XI as per latestMHT-CET Syllabus. Exhaustive subtopic wise coverage of MCQs. ‘7038’ MCQs including questions from various competitive exams. Notes, Shortcuts, Mindbenders, Formulae provided in each chapter. Includes MHT-CET 2020 Question Paper (14th October) along with Answer key. Various competitive examination questions till the latest year. Evaluation test provided at the end of each chapter. Inclusion of ‘The physics of .’ to engage students in scientific enquiry. Two Model Question Papers with answers key and solutions provided in the form of QRCode.eC Scan the adjacent QR code to Scan the adjacent QR code todownload Model Paper II and download Hints for relevantquestions,SolutionstoSolution.Evaluation Test and MHT-CETpaper 2020 in PDF format.SamplScan the adjacent QR code todownload Model Paper I andSolution.Printed at: Print to Print, Mumbai Target Publications Pvt. Ltd.No part of this book may be reproduced or transmitted in any form or by any means, C.D. ROM/Audio Video Cassettes or electronic, mechanicalincluding photocopying; recording or by any information storage and retrieval system without permission in writing from the Publisher.Balbharati Registration No.: 2018MH0022TEID: 1917P.O. No. 1694
PREFACE“Don’t follow your dreams; chase them!”- a quote by Richard Dumbrill is perhaps the most pertinent forone who is aiming to crack entrance examinations held after std. XII. We are aware of an aggressivecompetition a student appearing for such career defining examinations experiences and hence wanted tocreate books that develop the necessary knowledge, tools and skills required to excel in these examinations.For the syllabus of MHT-CET 2021, 80% of the weightage is given to the syllabus for XIIth standard whileonly 20% is given to the syllabus for XIth standard (with inclusion of only selected chapters).ontentAlthough the syllabus for Std. XI and XII and MHT-CET is aligned, the outlook to study the subjectshould be altered based on the nature of the examination. To score in MHT-CET, a student has to be notjust good with the concepts but also quick to complete the test successfully. Such ingenuity can bedeveloped through sincere learning and dedicated practice.Having thorough knowledge of theory, derivations and their applications is a prerequisite for beginningwith MCQs on a given chapter in Physics. Students must know formulae, conversion factors, units anddimensions of physical quantities involved in the chapter. Physics is conveyed using mathematics;therefore, students should study essential mathematical concepts such as trigonometric functions, identities,derivatives and integration rigorously. They should befriend ideas of tangent, slope, area under the curveand nature of various plots and their equations to resolve graphical intricacy of Physics. It should be kept inmind that every single line of text has potential of generating several MCQs.CAs a first step to MCQ solving, students should start with elementary questions. Once a momentum isgained, complex MCQs with higher level of difficulty should be practised. Questions from previous yearsas well as from other similar competitive exams should be solved to obtain an insight about plausiblequestions.Competitive exams challenge the understanding of students about the subject by combining concepts fromdifferent chapters in a single question. To figure these questions out, cognitive understanding of subject isrequired. Therefore, students should put in extra effort to practise such questions.ePromptness being virtue in these exams, students should wear time saving short tricks and alternatemethods upon their sleeves and should be able to apply them with accuracy and precision as required.plSuch a holistic preparation is the key to succeed in the examination!To quote Dr. A.P.J. Abdul Kalam, “If you want to shine like a sun, first burn like a sun.”mOur Triumph Physics book has been designed to achieve the above objectives. Commencing from basicMCQs the book proceeds to develop competence to solve complex MCQs. It offers ample practice of recentquestions from various competitive examination. While offering standard solutions in the form of concisehints, it also provides Shortcuts and Alternate Methods. Each chapter ends with an Evaluation test to allowself-assessment.Features of the book presented on the next page will explicate more about the same!SaWe hope the book benefits the learner as we have envisioned.The journey to create a complete book is strewn with triumphs, failures and near misses. If you thinkwe’ve nearly missed something or want to applaud us for our triumphs, we’d love to hear from you.Please write to us on: mail@targetpublications.orgA book affects eternity; one can never tell where its influence stops.From,PublisherEdition: FirstBest of luck to all the aspirants!
FEATURESFormulaeAngular velocity:i. iii. 2 n2.Angular displacement:i. tiii. 2 ntvrFormulaeii.iv.ii. t2 T Formulae includes key formulae of thechapter.This is our attempt to make tools offormulae accessible for the studentswhile solving problems and revising atlast minute at a glance.NotesCNotes2 tTontent1. Qm T2.Since specific heat C i.In isothermal expansion, T being zero, specificheat is .For an adiabatic change, Q being zero, specificheat is e points which elaboratetextual concepts or cover missingfragments of concept essential for thecompleteunderstandingof theconcept.This is our attempt to offer gist ofknowledge required from examinationpoint of view.MindbendersA solid and hollow sphere of same radius andmaterial are heated to the same temperature thenexpansion of both will be equal. It means theexpansion of cavity is same as if it has been a solidbody of the same material. But if same heat is givento the two spheres, due to lesser mass, rise intemperature of hollow sphere will be oking snippets of concepts.This is our attempt to enable thestudents perceive underlying depthand implications of concept.
FEATURESShortcutsShortcutsClassical ThinkingFor a particle executing S.H.M:From mean position in order to travel half ofamplitude, time required is given by, t ii.T12From extreme position, in order to travel half ofamplitude, time required is given by, t Ts6Classical Thinking5.1 IntroductionWhich of the following is NOT a characteristic ofgravitational force?(A) Gravitational force is always attractive.(B) Gravitational force has a finite range.(C) Gravitational force does not depend uponintervening medium.(D) Gravitational force is a weak force.Classical Thinking section encompassesstraight forward questions includingknowledge-based questions.This is our attempt to revise chapter inits basic form and warm up the studentsto deal with complex eoretical or formula based shorttricks considering their utility insolving MCQ.This is our attempt to highlightcontent that would come handywhile solving questions.Critical ThinkingmCritical ThinkingSaCritical Thinking section encompasseschallenging questions which testunderstanding, rational thinking andapplication skills of the students.This is our attempt to take the studentsfrom beginner to proficient level insmooth steps.6.21.Progressive WaveA travelling wave passes through a point ofobservation. At this point, the time intervalbetween successive crests is 0.2 s, then,(A) wavelength is 5 m.(B) frequency is 5 Hz.(C) velocity of propagation is 5 m/s(D) wavelength is 0.2 m.
FEATURESCompetitive Thinking7.2Nature of LightCompetitiveThinkingsectionencompasses questions from variouscompetitiveexaminationslikeMHT CET, JEE, AIPMT/NEET-UG, etc.This is our attempt to give the studentspractice of competitive questions andadvance them to acquire knack essentialto solve such questions.According to corpuscular theory of light which isNOT the property of light?[MHT CET 2019](A) The velocity of light in air is greater than inglass.(B) Light travels in straight lines.(C) The velocity of light does not change afterreflection.(D) The velocity of light changes after reflection.ontent1.Competitive ThinkingSubtopicsSubtopic wise s Laws of Electrical NetworkWheatstone BridgePotentiometerGalvanometerpleCEvery section is segregated sub-topicwise.This is our attempt to cater toindividualistic pace and preferences ofstudying a chapter in the students andenable easy assimilation of questionsbased on the specific concept.MiscellaneousA wire of cross-sectional area A forms 3 sides of asquare and is free to turn about axis XX . If thestructure is deflected by from vertical whencurrent I is passed through it, in a magnetic field Bacting vertically upward and density of wire is ,the value of B is given byBXX Sam93.(A)(C) 2A gcot IA gsin I (B)(D)2A gtan IA gcos 2IMiscellaneousEvery section, in general, ends with asub-topic; miscellaneous.Miscellaneous incorporates MCQswhose solutions require knowledge ofconceptscoveredindifferentsub-topics of same chapter or fromdifferent chapters.This is our attempt to develop cognitivethinking in the students essential tosolve questions involving fusion ofmultiple key concepts.
FEATURESEvaluation testEvaluation TestThe physics of .1.The ratio of areas within the electron orbits for thefirst excited state to the ground state for hydrogenatom is(A) 16 : 1(B) 18 : 1(C) 4 : 1(D) 2 : 1ontentEvaluation Test covers questions fromchapter for self-evaluation purpose.This is our attempt to provide thestudents with a practice test and helpthem assess their range of preparationof the chapter.How a loudspeaker produces sound .CThe physics of .eLoud speakers help us to listen to wonderful music. Whatmechanism in them makes them produce the sound?SamplThe answer is at the end of this chapter.The physics of . illustrates real lifeapplications or examples related to theconcept discussed.This is our attempt to link learning to thelife and make the students conscious of howPhysics has touched entire spectrum of life.
MHT-CET PAPER PATTERN PaperSubjectPaper IMathematicsPhysicsChemistryBiologyPaper IIPaper III Approximate No. of MultipleChoice Questions (MCQs) based onStd. XIStd. XII1040104010402080C ontentThere will be three papers of Multiple Choice Questions (MCQs) in ‘Mathematics’, ‘Physics andChemistry’ and ‘Biology’ of 100 marks each.Duration of each paper will be 90 minutes.Questions will be based on the syllabus prescribed by Maharashtra State Board of Secondary andHigher Secondary Education with approximately 20% weightage given to Std. XI and 80% weightagewill be given to Std. XII curriculum.Difficulty level of questions will be at par with JEE (Main) for Mathematics, Physics, Chemistry and atpar with NEET for Biology.There will be no negative marking.Questions will be mainly application based.Details of the papers are as given below:Mark(s) m2SubjectMathematicsSa34Chapters / Units of Std. XIMotion in a plane, Laws of motion, Gravitation, Thermal properties ofmatter, Sound, Optics, Electrostatics, SemiconductorsSome Basic Concepts of Chemistry, Structure of Atom, ChemicalBonding, Redox Reactions, Elements of Group 1 and Group 2, States ofMatter: Gaseous and Liquid States, Basic Principles and techniques ofChemistry, Adsorption and Colloids, HydrocarbonsTrigonometry - II, Straight Line, Circle, Measures of Dispersion,Probability, Complex Numbers, Permutations and Combinations,Functions, Limits, ContinuityBiomolecules, Respiration and Energy Transfer, Human Nutrition,Excretion and osmoregulationplSr. No.eQuestions will be set oni.the entire syllabus of Std. XII of 2020-21 of Physics, Chemistry, Mathematics and Biologysubjects excluding portion which is deleted by Maharashtra State Bureau of Textbook Productionand Curriculum Research, Pune, andii.chapters / units from Std. XI curriculum as mentioned below:Biology
CONTENTSSr.No.TextbookChapter No.Chapter NamePage No.Std. XI3Motion in a Plane124Laws of Motion3535Gravitation6347Thermal Properties of conductorsontent1138179197Std. XII1Rotational Dynamics102Mechanical Properties of Fluids262113Kinetic Theory of Gases and Superposition of Waves374157Wave Optics411168Electrostatics442179Current Electricity4841810Magnetic Fields due to Electric Current5081911Magnetic Materials54121e34212Electromagnetic Induction55613AC Circuits57914Dual Nature of Radiation and Matter596m22pl20211C92315Structure of Atoms and Nuclei6172416Semiconductor Devices641MHT-CET 2020 Question Paper66025SaNote: Subtopics/ Questions belonging to the reduced syllabus for year 2020-21 are represented withQuestions of Standard XI are indicated by ‘*’ in each Model Question Paper.Rmark.DisclaimerThis reference book is transformative work based on XIth std. textbook Physics; First edition: 2019 and XIIth std. textbook Physics; First edition: 2020published by the Maharashtra State Bureau of Textbook Production and Curriculum Research, Pune. We the publishers are making this reference bookwhich constitutes as fair use of textual contents which are transformed by adding and elaborating, with a view to simplify the same to enable thestudents to understand, memorize and reproduce the same in examinations.This work is purely inspired upon the course work as prescribed by the Maharashtra State Bureau of Textbook Production and Curriculum Research, Pune.Every care has been taken in the publication of this reference book by the Authors while creating the contents. The Authors and the Publishers shall not beresponsible for any loss or damages caused to any person on account of errors or omissions which might have crept in or disagreement of any third party onthe point of view expressed in the reference book. reserved with the Publisher for all the contents created by our Authors.No copyright is claimed in the textual contents which are presented as part of fair dealing with a view to provide best supplementary study material forthe benefit of students.
TextbookChapter No.16Semiconductor DevicesontentSubtopics16.1 IntroductionIz16.2 p-n Junction Diode as a Rectifier16.3 Special Purpose Junction Diodes16.4 Bipolar Junction Transistor (BJT)16.5 Logic gates[Note: The article number 16.3.1, Zener Diode is not a part ofZener diode is a unique form of abipolar device which permits the currentflow in the reverse direction when thevoltage applied is above a certaincharacteristic value called zener voltageor break down voltage, most commonlyfinds applications in voltage regulatorsto protect other semiconductor devicesfrom fluctuations in voltage.16.3 – Special Purpose Junction Diodes, as per Reduced syllabuseC2020-21]FormulaeplZener diode:Zener current:a. I Zmin I Zmax ILb.VIL ZRLc. Im1.i. Vs VZRsSeries resistance:I ZmaxZener voltage:VZ ILRL2.Current in the transistor:IE IB ICRelation between and :a. DC DC1 DCb. DC DC1 DCAC current gain: AC ii.Current Gain of transistor:i.DC current gain ( DC): DC ii.Current amplification factor ( ): DC ICIEICIB VBE I BOutput dynamic resistance:ro 3. ICi CiB IBResistance of transistor:Input dynamic resistance:ri V VZ Rs siii.iv.4.i.Saii.Z maxiii. VCE IC5.Voltage gain:i.AV ii.AV VCEri I Biii.AV AC R LriVoVin641
MHT-CET Triumph Physics (MCQs)Semiconductor light emitting diodeNotesMagnitude of direct current which can behandled by diode is called current rating ofdiode.2.In a common base transistor amplifier,i.the input and output signals are in thesame phase.ii.there is no amplification in current of agiven signal.iii. there is an amplification in voltage andpower of the given signal.3.4.ontent1.In a common emitter transistor amplifier,i.the input and output signals are out ofphase by or 180 .ii.there is amplification in the current,voltage and power of the given signal.Common emitter transistor amplifier ispreferred over common base transistoramplifier due to large current gain.The d.c. current gain is always less than 1.6.NOR and NAND gates are called universalgates.Classical Thinking16.1 Introduction1.Mindbenders2.AC signal is preferred over DC signal because(A) Generation of AC at a power station ismore cost effective than producing DCpower.(B) The transmission of AC power is alsomore economic than transmitting DCpower.(C) many electronic gadgets require an ACsupply.(D) both (A) and (B).3.Which of the following waveforms represent thewave after passing through a diode rectifier?(A)mpleMaterial used for fabricating a solar cell shouldfulfil two important requirements. Firstly, itmust be photosensitive material which absorbslight and raises electrons to a higher energystate. Secondly, the higher energy electrons thusgenerated should be taken from the solar cellinto an external circuit. The electrons thendissipate their energy while passing through theexternal circuit and return to the solar cell.Almostallphotovoltaicdevicesusesemiconductor materials in the form of a p-njunction.SaShortcuts1.The value of potential barrier for germaniump-n junction is 0.3 V and for silicon p-n junctionis 0.7 V.2.If both inputs of NAND gates are shorted, thenit becomes NOT gate (similar is applicable forNOR gate).AYNOT gate642Under which of the following conditions doesan avalanche breakdown in a semiconductordiode occur?(A) When potential barrier is reduced to zero.(B) When reverse bias exceeds a certain value.(C) When forward bias exceeds a certain value.(D) When forward current exceeds a certainvalue.C5.1.A diode which finds extensive use inrolling displays, traffic control lightsystem etc. A light emitting diode can emitlight of a particular colour when forwardbiased.(B)(C)
Chapter 16: Semiconductor Devices(D)12.The effectiveness of a rectifier depends uponthe(A) the magnitude of ripple component in itsoutput.(B) the value of input voltage.(C) the magnitude of reverse voltage of thediode.(D) the value of the input frequency.13.Which is the correct diagram of a half-waverectifier? 16.2 p-n Junction Diode as a Rectifier8. (B) (C)In a half wave rectifier, the r.m.s value of theA.C. component of the wave is(A) equal to D.C. value.(B) more than D.C. value.(C) less than D.C. value.(D) zero.The transformer is used in rectifier circuit,(A) to isolate the rectifier circuit.(B) to protect the diode.(C) to step up or step down the AC input asper requirement.(D) All of these.In half wave rectifier, the diode(A) allows current from both positive andnegative half cycles from the input.(B) blocks the current from all the positivehalf cycles.(C) blocks the current from all the negativehalf cycles.(D) allows current from alternate positive andnegative half cycles.Sam9.ontent7.A diode rectifier(A) converts A.C. into D.C.(B) converts D.C. into A.C.(C) amplifies A.C. signals.(D) amplifies D.C. signals.(A) C6.The use of diode for rectification is:(A) to produce a steady multidirectionalcurrent.(B) to produce undirectional current from analternating one.(C) to rectify any phase difference betweenthe current and voltage.(D) all of these.(D)14.e5.The process of conversion of alternating currentinto direct current is called as(A) rectification(B) amplification(C) magnification(D) modulationpl4.10.To obtain full wave rectification, we require(A) only one diode(B) triode(C) two diodes(D) transistor11.What can be said about the output frequency ofa rectifier circuit?(A) it is always zero.(B) it is more in case of half wave rectifier.(C) it is more in case of full wave rectifier.(D) it is always equal to the input frequency. The maximum efficiency of full-wave rectifieris(A) 100 %(B) 25.20 %(C) 40.6 %(D) 81.2 %16.3 Special Purpose Junction Diodes15.A Zener diode(A) has negative temperature coefficient ofresistance.(B) has sharp breakdown at low reverse voltage.(C) rectifies Zener voltage.(D) works only in forward bias.16.Zener breakdown takes place if(A) doped impurity is low.(B) doped impurity is high.(C) less impurity in N-type.(D) less impurity in P-type.17.When used in a circuit, Zener diode is always(A) forward biased.(B) reverse biased.(C) both forward and reverse.(D) connected in series.18.Zener diode is used as(A) Half-wave rectifier.(B) Full-wave rectifier.(C) ac voltage stabilizer.(D) dc voltage stabilizer.643
MHT-CET Triumph Physics (MCQs)21.When a zener diode is used as a voltagestabiliser, it is connectedi.in series with a load.ii.in parallel with a load.iii. in forward bias.iv.in reverse bias.(A) i and iii are correct(B) i and iv are correct(C) ii and iv are correct(D) ii and iii are correctSymbol for photo-diode isAnode(A)(B)pAnodepp28.Solar cell is based on the principle of(A) formation of electron-hole pairs withincident light.(B) formation of electron-hole pairs withheating.(C) formation of electron-hole pairs withpotential.(D) all of these29.A solar cell(A) converts the radiant energy of sun intoelectrical power.(B) converts the radiant energy of sun into heat.(C) reflects all the light from sun.(D) absorbs energy and converts into soundenergy.30.A solar cell works on the principle of(A) photoelectricity.(B) photographic camera.(C) photovoltaic conversion.(D) photosynthesis.31.A solar cell is a p-n junction operating in(A) reverse bias condition.(B) unbiased condition.(C) forward bias condition.(D) in both forward and reverse bias condition.32.In LED, intensity of emitted light(A) increases with forward current.(B) decreases with forward current.(C) increases with reverse current.(D) decreases with reverse current.33.A light emitting diode is(A) always used in forward biased condition.(B) always used in reverse biased condition.(C) never used in forward biased condition.(D) used in both forward and reverse biasedposition depending upon its application.34.Which of the following diode emits red andyellow light?(A) Ga-As(B) Ga-As-P(C) Ga-P(D) As-PnplCathodeCathodeElectron hole pairs are generated in a photodiode(A) when light enters in its depletion region.(B) when light enters in its junction.(C) when photon energy h Eg.(D) (A) and (C)Photocurrent in a photodiode depends upon(A) biasing of junction.(B) number of electron holes.(C) density of diode material.(D) intensity of incident radiation.24.In photodiode, dark current is(A) the leakage current.(B) the current due to minority chargecarriers.(C) the current when light energy emerges outof the diode.(D) the current when no light energy falls onthe diode.25.In remote controlled receivers, the sensor are(A) LEDs(B) Solar cells(C) Photodiodes(D) Zener diodes644Usually Si is used in the designing ofphotodiodes because(A) it is portable.(B) it is easily available.(C) it requires less forward biasing.(D) current due to thermally generatedminority carriers is quite small.AnodeSa23.27.e(D)m22.Which of the following is NOT an applicationof photodiode?(A) Detection of optical signal(B) Object counters(C) Optocouplers(D) Data akdown voltage of a zener diode is 5 volt. Itcan regulate the voltage output of a powersupply(A) below 5 volt only.(B) above 5 volt upto a certain maximumvoltage.(C) from zero volt to a certain maximumvoltage.(D) from zero volt to infinite volt.C19.
Chapter 16: Semiconductor Devices36.Colour of light emitted by LED depends on(A) its reverse bias.(B) its forward bias.(C) type of semiconductor.(D) rectifier.Barrier potential in LED depends on type of(A) impurity(B) junction(C) biasing(D) semiconductorsThe brightness of LED can be controlled by(A) applied potential differences.(B) by changing the value of series resistance.(C) by changing the value of parallel resistance.(D) none of these38.In LED, to avoid damage to the diode isused.(A) capacitor(B) resistor(C) insulator(D) conductor39.Choose the INCORRECT statement.(A) LEDs are cheap.(B) LEDs require high operating voltage.(C) LEDs have light weight.(D) LEDs have high operating speed.40.Barrier potential in Ga-As-P LED is about(A) 5 volt(B) 0.5 volt(C) 1.5 volt(D) 2.5 voltpleIn a Zener-regulated power supply, a 10 Vbattery is connected in series with a resistanceof 200 and a zener diode. The zener diodemaintains a constant voltage drop of 5 V acrossa load resistance of 500 . The current drawnby the load resistance will be(A) 0.025 A(B) 0.050 A(C) 0.01 A(D) 0.015 Am16.4 Bipolar Junction Transistor (BJT)In a transistor with normal bias, the emitter basejunction(A) has a high resistance.(B) has a low resistance.(C) is reverse biased.(D) is forward biased.Sa42.How many electrodes are there in a transistor?(A) 2(B) 3(C) 4(D) 546.The amplifier converts(A) A.C. into D.C. voltage.(B) D.C. into A.C. voltage.(C) low input signal to high output signal.(D) high input signal to low output signal.47.The arrow head on the transistor symbol alwayspoints in the direction of(A) flow of holes in the emitter region.(B) flow of electrons in the emitter region.(C) minority carriers flow in the emitter region.(D) majority carriers flow in the emitter region.48.In a transistor,(A) length of emitter is greater than collector.(B) length of collector is greater than emitter.(C) length of base is greater than emitter.(D) length of base is greater than collector.49.In a transistor, the emitter current is(A) slightly more than collector current.(B) slightly less than collector current.(C) equal to the collector current.(D) equal to the base current.C37.41.45.ontent35.43.Transistor consists of two junction diodes whichare connected(A) one after another.(B) back to back.(C) one across another.(D) one upon other.44.Transistors are essentially(A) power driven devices.(B) current driven devices.(C) voltage driven devices.(D) resistance driven devices.50.Thetransistorsprovidegoodamplification when they are used in(A) common collector configuration.(B) common emitter configuration.(C) common base configuration.(D) any configuration.power51.The part of a transistor which is heavily dopedto produce a large number of majority carriers is(A) Base(B) Emitter(C) Collector(D) All of these52.Least doped region in a transistor(A) Collector(B) Base(C) Emitter(D) Either emitter or collector53.The symbol given in figure represents(A) npn transistor(B) pnp transistorEC(C) Forwardbiasedp-n junction diode(D) Reverse biased p-nBjunction diode54.A transistor can be used as .(A) a full-wave rectifier(B) an amplifier(C) a half-wave rectifier(D) an insulator645
MHT-CET Triumph Physics (MCQs)In npn transistor, if IE emitter current, IB basecurrent and IC collector current, then(B) IB IC IE(A) IC IE IB(D) IE IC IB(C) IE IC IB56.When n-p-n transistor is used as an amplifier,(A) electrons move from base to collector.(B) holes move from emitter to base.(C) electrons move from collector to base.(D) holes move from base to collector.57.In case of n-p-n transistors, the collector currentis always less than the emitter current because(A) collector side is reverse biased andemitter side is forward biased.(B) after electrons are lost in the base, onlyremaining ones reach the collector.(C) collector side is forward biased andemitter side is reverse biased.(D) collector being reverse biased attracts lesselectrons.(B)(C)(D)ro VEB I E62.In the study of transistor as an amplifier, if IC/IE and IC/IB where, IC, IB and IE arethe collector, base and emitter currents, then1 (A) (B) 1 1 (C) (D) 1 63. VCBro ICro ro VCE IC VCE ICVCE constant64.VCE constantmSa Vin RL (A)(B) ΔICΔI B(B) I B IC(C) IC I E(D) I E ICBoolean algebra is essentially based on(A) symbol(B) logic(C) numbers(D) truthThe Boolean expression for OR function is(A) Y A B(B) Y A B(C) Y A B(D) Y A66.Which logic gate is similar to a function of twoseries switches?(A) AND gate(B) OR gate(C) NAND gate(D) XOR67.Logic gates are the building blocks of a(A) digital system.(B) analog system.(C) abacus system.(D) communication system.68.A combination of AND function and NOTfunction results in(A) OR gate(B) inversion(C) NAND gate(D) NOR gate69.The figure represents a digital(A) XOR gate.A(B) OR gate.(C) AND gate.B(D) NOR gate.I B constantAn npn transistor circuit is arranged as shown infigure. It isnpn(A)65.VB constantA transistor when connected in common emittermode has a(A) high input resistance and a low outputresistance.(B) low input resistance and low outputresistance.(C) low input resistance and a high outputresistance.(D) high input resistance and a high outputresistance.60.For a transistor, in a common emitterarrangement, the alternating current gain isgiven by16.5 Logic gatespl59.646In a transistor, the value of is always(A) less than 1(B) equal to 1(C) unpredictable(D) greater than 1C(A)a common-collector amplifier circuit.rectifier circuit.61.The dynamic output resistance (ro) of p-n-ptransistor in a common emitter mode is given bye58.(C)(D)ontent55.a common-base amplifier circuit.a common-emitter amplifier circuit. Vout 70.An OR gate gives a logic 1 output(A) only when all inputs are logical 1.(B) only when any two inputs are logical 1.(C) when all inputs are logical 0.(D) when any one input is logical 1.Y
Chapter 16: Semiconductor DevicesA0011(A)(C)74.B0101Y1000AND gateNAND gate(A)(B)(C)(D)B0011OR gateAND gateNAND gateNOR gate2.3.(B)(D)OR gateNOR gateThe following truth table is obtained forA01011.X0001Ripple frequency at the output of bridge rectifierwhen the transformer primary is connected toA.C. mains supply is(A) 100 Hz(B) 50 Hz(C) 25 Hz(D) 75 HzontentTruth table given below represents16.2 p-n Junc
MHT-CET PHYSICS TRIUMPH Scan the adjacent QR code to download Hints for relevant questions, Solutions to . For the syllabus of MHT-CET 2021, . As a first step to MCQ solving, students should start with elementary questions. Once a momentum is gained, complex MCQs
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