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Physics - 2014 Past Year Paper - IIT JAM MCQ


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30 Questions MCQ Test - Physics - 2014 Past Year Paper

Physics - 2014 Past Year Paper for IIT JAM 2024 is part of IIT JAM preparation. The Physics - 2014 Past Year Paper questions and answers have been prepared according to the IIT JAM exam syllabus.The Physics - 2014 Past Year Paper MCQs are made for IIT JAM 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Physics - 2014 Past Year Paper below.
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Physics - 2014 Past Year Paper - Question 1

For vectors    the vector product 

Physics - 2014 Past Year Paper - Question 2

A particle of mass m carrying charge q is moving in a circle in a magnetic field B. According to the Bohr’s model, the energy of the particle in the nth level is _____.

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Physics - 2014 Past Year Paper - Question 3

A conducting slab of copper PQRS is kept on the xy plane in a uniform magnetic field along xaxis as indicated in the figure. A steady current I flows through the cross- section of the slab along the y- axis. The direction of the electric field inside the slab, arising due to the applied magnetic field is along the

Physics - 2014 Past Year Paper - Question 4

A collimated beam of light of diameter 1 mm is propagating along the x- axis. The beam is to be expanded 10 mm using a combination of two convex lenses. A lens of focal length of 50 mm and another lens with focal length F are to be kept at a distance d between them. The values of F and d respectively, are

Physics - 2014 Past Year Paper - Question 5

Octal equivalent of decimal number 47810 is

Physics - 2014 Past Year Paper - Question 6

A spherical ball of ice has radius R0 and is rotating with an angular speed w about an axis passing through its centre. At time t = 0, it starts acquiring mass because the moisture around it starts to freeze on it uniformly. As a result its radius increases as R(t) = R0 + αt, where a is a constant.
The curve which best describes its angular speed with time is

Physics - 2014 Past Year Paper - Question 7

In a photoelectric effect experiment, ultraviolet light of wavelength 320 nm falls on the photocathode with work function of 2.1 eV. The stopping potential should be close to

Physics - 2014 Past Year Paper - Question 8

In 1- dimension, an ensemble of N classical particles has energy of the form    The average internal energy of the system at temperature T is ___ .

Physics - 2014 Past Year Paper - Question 9

In an ideal operational amplifier depicted below, the potential at node A is

Physics - 2014 Past Year Paper - Question 10

To operate a npn transistor in active region, its emitter- base and collector- base junction respectively, should be

Physics - 2014 Past Year Paper - Question 11

The value of 

Physics - 2014 Past Year Paper - Question 12

In a parallel plate capacitor the distance between the plates is 10 cm. Two dielectric slabs of thick- ness 5 cm each and dielectric constants K1= 2 and K2 = 4 respectively, are inserted between the plates. A potential of 100 V is applied across the capacitor as shown in the figure. The value of the net bound surface charge density at the interface of the two dielectrics is

Physics - 2014 Past Year Paper - Question 13

The electric fields of two light sources with nearby frequencies ω1 and ω2, and wave vectors k1 and k2, are expressed as    respectively. The interference pattern on the screen is photographed at t = t0; denote    For this pattern

Physics - 2014 Past Year Paper - Question 14

A solid metallic cube of heat capacity S is at temperature 300 K. It is brought in contact with a reservoir at 600 K. If the heat transfer takes place only between the reservoir and the cube, the entropy change of the reservoir after reaching the thermal equilibrium is ____

Physics - 2014 Past Year Paper - Question 15

If the surface integral of the field    over the closed surface of an arbitrary unit sphere is to be zero, then the relationship between α, β  and γ is

Physics - 2014 Past Year Paper - Question 16

The moment of inertia of a disc about one of its diameters is IM. The mass per unit area of the disc is proportional to the distance from its centre. If the radius of the disc is R and its mass is M, the value of IM is _______

Physics - 2014 Past Year Paper - Question 17

The rigid uniform horizontal wire PQ of mass M, pivoted at P, carries a constant current I. It rotates with a constant angular speed in a uniform vertical magnetic field B. If the current were switched off, the angular acceleration of the wire, in terms of B, M and I would be

Physics - 2014 Past Year Paper - Question 18

Two points N and S are located in the northern and southern hemisphere, respectively, on the same longitude. Projectiles P and Q are fired from N and S, respectively, towards each other.Which of the following option is correct for the projectiles as they approach the equator ?

Physics - 2014 Past Year Paper - Question 19

Two particles A and B of mass m and one particle C of mass are kept on the x axis in thr order ABC, Particle A is given a velocity vi . Consequently there are two collisions, both of which are completely inelastic. If the net energy loss because of these collisions is 7/8 of the initial energy,, the value of M is (ignore frictional losses)

Physics - 2014 Past Year Paper - Question 20

The line integral    of a vector field    where r2 = x2 + y2, is taken around a square (see figure) of side unit length and centered at (x0, y0) with    the value of the integral is L, then 

Physics - 2014 Past Year Paper - Question 21

Diamond lattice can be considered as a combination of two fcc lattices displaced along the body diagonal by one quarter of its length. There are eight atoms per unit cell. The packing fraction of the diamond structure is

Physics - 2014 Past Year Paper - Question 22

Thermal neutrons (energy = 300 kB = 0.025 eV) are sometimes used for structural determination of materials. The typical lattice spacing of a material for which these can be used is

Physics - 2014 Past Year Paper - Question 23

What is the maximum height above the dashed line attained by the water stream coming out at B from a thin tube of the water tank assembly shown in the figure? Assume h = 10 m, L = 2m, and θ = 30o.

Physics - 2014 Past Year Paper - Question 24

A steady current in a straight conducting wire produces a surface charge on it. Let Eout and Ein be the magnitudes of the electric fields just outside and just inside the wire, respectively. W hich of the following statements is true for these fields ?

Physics - 2014 Past Year Paper - Question 25

A small charged spherical shell of radius 0.01 m is at a potential of 30 V. The electrostatic energy of the shell is

Physics - 2014 Past Year Paper - Question 26

At an instant shown, three point masses m, 2m and 3m rest on a horizontal surface, and are at the vertices of an equilateral triangle of unit side length. Assuming that G is the gravitational constant, the magnitude and direction of the torque on the mass 3m, about the point O, at that instant is

Physics - 2014 Past Year Paper - Question 27

A sine wave of 5V amplitude is applied at the input of the circuit shown in the figure. which of the following waveforms represents the output most closely?

Physics - 2014 Past Year Paper - Question 28

1011 binary have been applied at X3 X2 X1 X0 input in the shown logic circuit made of XOR gates. The binary output Y3 Y2 Y1 Y0 of the circuit will be

Physics - 2014 Past Year Paper - Question 29

A ring of radius R carries a linear charge density l.  It is rotating with angular speed w.  The magnetic field at its center is

Physics - 2014 Past Year Paper - Question 30

A stationary source (see figure below) emits sound waves of frequency f towards a wall. If an observer moving with speed u in a direction perpendicular to the wall, measures a frequency f’ = 9/8 f at the instant shown, then u is related to the speed of sound Vs as

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