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s, , 7, , a a yiHT 2022, 1T, , FHT 245 fE, , 12, , i T 56, , GENERAL INSTRUCTION TO THE EXAMINEES:, , Candidate must write first his/her Roll No. on the question paper compulsorlly., , All the questions are compulasory., Write the answer to each question in the given answer book only., , For questions having more than one part the answers to those parts are to be, , wrltten, , together in continuity., , If there is any error/difference/contradiction in Hindi & English version of the, question paper, the question of the Hindi version should be treated valid.
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SECTION A), Write the correct answer from multiple choice question 1 (ito ix) and write in given answer book., 1, , 7) C'N'm, , c'N'm, () c'N'm, , ()c'N'm, The unit of permittivity of free space is, , (A) C'N'm, (c) c'Nm, , (B) CN'm2, , (D) c'Nm, , )37T, Dielectric meterials are, (A) conductors, , (B) Non conductors, , (C) semi-conductors, , (D) none of these, , E, s7) 420+10%, , (a) 240+10%, , F) 420+5%, , () 240+5%, , Resistance of the carbon resistor shown in figure in ohm will be, , Yello Giolden, Red, , B, , (A) 420+10%, , (B) 240t10%, , (C) 420+5%, , (D) 240+5%, , 1, , 3) qvB, , Zero, , (), An electric charge q is moving with uniform velocity v in the direction of magnetic field B. Magnetic force acting, on the charge will be-
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(B) Zero, , (A) qvB, , (o), , 1, , (a)riraR ERT, "The magnitude of the induced emf in a circuit is equal to the time rate of change of magnetic flux through the, circuit." This law is given by, (A) Lenz, , (B) Ampere, , (C) Faraday, , (D) Henery, , ), , hu=mv,+Po, , h-mv,-%, , )mv=e, Photo electric equation of Einstein is, , (A), , m-, , (B) hu= m+Po, , (D) =, , )3:81, , a81 3, , () 1 3, , 3:1, , ,, , The atomic masses of two different nuclie are 3 and 81 then the ratio of their radius are, , (A)3:81, (C) 1:3, , (B)81:3, (0)3:1, , The acceptor impurity in following is-, , (A) Arsenic, , (B) Indium, , (C) Antimony, , (D) Phosphorous, , ( 3t) AND, , OR, , NOR, , NOT
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The universal gate in following is, (A) AND, , (B) OR, , (C) NOR, , (D) NOT, , Ques 2:- Fill in the blank., , 1, , *****************************, , The capacitance of the parallel plate capacitor in vacuum is C. A material of dielectric constant K is filled, completely between the plates then the new value of capacitance is..*************, , The resistivity of semiconductor is., , with increasing of the temperature., , ********************, , Lanz'slaw obey the., , . . Conservation law., , ****************, , 1, , *****************, , ., , dode is used as a voltage regulator., , Give the, , answer, , of the following question in, , one, , line, , Draw circuit diagram for comparison of emf of two primary cells with the help of potentiometer., How will be a galvanometer converted into a voltmeter?, , 1, , 40009, , 00000, , Eye, A bar magnet NS is moved in the direction indicated by an arrow between two coils AB and CD as shown in the, , figure. in which Coil the direction of current willlook like anti- clockwise if viewed from left side ?, , Eye, Write the name of experiment supporting the wave nature of particle., ?, , 1
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An alpha particle and a proton have same kinetic energies. Which one of these particles has lowest de-Broglie, , wavelength?, 1, , Write the difference between Nuclear fission and Nuclear fusion., , Draw a graph between the binding energy per nucleon and mass number., , /2+1/2=1, , 8, , O11, , faP, Write the names of the logic gates related to figure P and Table Q., , Input Output, , A, , B, , o 1, , 1, , Table Q, , Figure P, , SECTION B), 12, Derive an expression for electric potential due to a point charge at a distance r from the charge., , 12, , A, SHF, , T, , Calculate the equivalent capacity of the combination of capacitors between A and B in given diagram.
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A, , 12, Write two differences between the terminal voltage (V) and e.m.f. (¬) of the cell., , 12, , -4a, , ww., , In the given circuit diagram, find the value of unknown resistance S, in the balancing condition of meter bridge., M w, , 4ocm, , 12, A conducting rod of length ' ' is moving with constant linear speed v in a uniform magnetic fieldB.This, , arrangement is mutually perpendicular. Obtain the expression of motional electromotive force., , 12, Current In a circuit falls from 5 Amp to zero in 0.1 second. If an average e.m.f. of 100 volt is induced then calculate, self-inductance of inductor in the circuit., , Define total internal reflection. Write the name of any two phenomenons based on it., , 12, Write any three differences between primary and secondary rainbow., , 12, Establish the relation between focal length (f) and radius of curvature (R) for a spherical mirror.
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12, The focal lengths of an objective lens and eyepiece are 192 cm and 8 cm respectively in a telescope. Calculate its, , magnifying power and the separation between the two lenses., , 12, Write the function of moderator, coolant and control rods in the nuclear reactor., , 12, In a radioactive sample the numbers of active nuclei remains 6.25% of its initial value in 6 hours. find the half-lfe of, the radioactive sample., , SECTION C), , 2+1, , 3, , Obtain an expression for magnetic field on the axis of a current-carrying circular loop (coil) with the help of BioServant's law. Draw necessary diagram., , 372rT/ OR, , 2+1=3, , Obtain an expression for magnetic field on the axis of a current carrying toroid with the help of Ampere's circuital, law. Draw necessary diagram., , 2+1-3, , R, For refraction at a spherical surface derive the relation, , - 4 4 nobject distance (u)., R, , image distance (v) refractive index of media (/7,n) and radius of curvature (R) . Draw necessary ray, , diagram., , 372rT/ OR, , 1+2 3, Draw a ray diagram for the formation of image by compound microscope. Derive an expression of the angular, , magnification of it when the final image is formed at the closest comfortable distance (D) for viewing the image., , 18. ( TeTAT fega raTa, , uffonfea a f I
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(t#) MfrrA ETg, , 7TYFTT 3.31x 1.6x10i9, , I, , ¥N TEI 3TgN 77 H, , STA, 1+1+1-3, , Define photo electric effect., , () Plot a graph of variation of photo electric current with collector plate potential for two incident, radiations of same intensity and different frequencies., , (un The work function for cesium metal is 3.31x 1.6x 10"Jule. Determine its threshold frequency for it., , 37eya1/ OR, , 1+1+1-3, , () Define stopping voltage., , (I) Plot a graph of variation of photo electric current with collector plate potential for two incident radiations of, same frequency and different intensities., (1) Determine the de-Broglie wave length of an electron accelerated by potential difference of 100 Volt., , SECTION D, 1+2+14, , Define electric dipole. Derive an expression for electric field intensity due to an electric dipole at a point on the, equatorial plane of the electric dipole. Draw necessary diagram., , 37eraT/OR, , 1+2+1=4, , Define electric field intensity. Derive an expression for electric field intensity at a point due to an infinitely long8, , uniformly charge straight wire with the help o auss law. Draw necessary diagram., , 1+1+1+1 =4, , What do you mean by rectification? Draw circuit diagram and explain the working of full wave rectifier. Represent, the wave form of input and output voltages also., , 37eraT/OR, , 1+1+1+1 =4, , What do you mean by reverse biasing of P-N junction diodes? Draw circuit diagram for reverse biasing of P-N, junction diode and explain its working process. Draw V-I characteristic curve for reverse biasing.
