Courses

# JIPMER Physics Mock Test - 8

## 60 Questions MCQ Test JIPMER 2020: Subject wise and Full Length Mock Tests | JIPMER Physics Mock Test - 8

Description
This mock test of JIPMER Physics Mock Test - 8 for NEET helps you for every NEET entrance exam. This contains 60 Multiple Choice Questions for NEET JIPMER Physics Mock Test - 8 (mcq) to study with solutions a complete question bank. The solved questions answers in this JIPMER Physics Mock Test - 8 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this JIPMER Physics Mock Test - 8 exercise for a better result in the exam. You can find other JIPMER Physics Mock Test - 8 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

Solution:
QUESTION: 2

Solution:
QUESTION: 3

### What is self inductance of a which produces 5 V, when current in it changes from 3 A to 2 A in one millisecond ?

Solution:
QUESTION: 4

In the circuit,the galvanometer G shows zero deflection. If the batteries A and B have negligible internal resistance, the value of the resistor R will be

Solution:
QUESTION: 5

A series combination of two resistors 1 Ω each is connected to a 12 V battery of internal resistance 0.4 Ω. The current flowing through it will be

Solution:
QUESTION: 6

Two capacitors when conected in series have a capacitance of 3 μF, and when connected in parallel have a capacitance of 16 μF. Their individual capacities are

Solution:
QUESTION: 7

A fan works on the principle of

Solution:
QUESTION: 8

Solution:
QUESTION: 9

A smooth hemispherical bowl of radius a, whose lowest-point is A, is fixed with its rim uppermost and horizontal. A particle of mass m is projected along the inner surface of the bowl with a speed of 2 √ga from A, so that its motion is in the vertical plane through A. Then the reaction between the particle and the bowl when the particle is at a vertical height 2a/3 above A, is

Solution:

The equations of motion are

R − mg cos θ = mv2/a … (1)  substituting the value of v2 in (1), we get  QUESTION: 10

Three capacitors of capacitances 2 μF, 4 μF and 6 μF are connected in a parallel combination. Their equivalent capacitance will be

Solution:
QUESTION: 11

A charged sphere of diameter 4 cm has a charge density of 10-4 cou∕cm2 . The work done in joules when a charge of 40 nano-coluombs is moved from infinite to a point which is at a distance of 2 cm from the surface of the sphere, is

Solution:
QUESTION: 12

Consider a satellite going round the earth in an orbit. Which of the following statements is wrong ?

Solution:
QUESTION: 13

A satellite is placed in a circular orbit around earth at such a height that it always remains stationary with respect to earth surface. In such case, its height from the earth surface is

Solution: QUESTION: 14

A body takes 1 1/3 times as much time to slide down a rough inclined plane as it takes to slide down an identical but smooth inclined plane. If the angle of inclination of the inclined plane is 45o, the coefficient of friction is

Solution:

Consider l be the length of both the inclined planes and θ be the inclination. Then the times taken by a body sliding the smooth and rough inclined planes are        QUESTION: 15

One feels hotter at the top of a flame than the sides because of

Solution:
QUESTION: 16

A straight wire carrying current I is turned into a circular loop. If the magnitude of magnetic moment associated with it in M.K.S. unit is M, the length of wire will be

Solution:
QUESTION: 17

A vessel containing 10 L of air at atmospheric pressure 760 mm of Hg is connected with an evacuated vessel of capacity 9 L. The resultant air pressure will be

Solution:
QUESTION: 18

In Young's double slit experiment, distance between slits is 0.28 mm and distance between slits and screen is 1.4 m. Distance between central bright fringe and third bright fringe is 0.9 cm. What is the wavelength of used light?

Solution:
QUESTION: 19

The cyclotron frequency of an electron gyrating in a magnetic field of 1 T is

Solution:
QUESTION: 20

Lorentz force can be calculated by using the formula

Solution:
QUESTION: 21

If a bar magnet of moment μ is suspended in a uniform magnetic field B and it is given an angular deflection ' θ ' w.r.t its equilibrium position, the restoring torque on magnet is

Solution:
QUESTION: 22

Two similar bar magnets P and Q each of magnetic moment M are taken. If P is cut along its axial line and Q is cut along its equatorial line, all the four pieces obtained have each of

Solution:
QUESTION: 23

What should be the minimum average velocity of water in a small tube of radius 5 mm, so that the flow is just turbulent? (Given: Viscosity of water=0.01 poise and density of water = 1000 kg-m-3)

Solution:
QUESTION: 24

A short magnetic needle is pivoted in a uniform magnetic field of strength 1 T. When another magnetic field of strength √3 T is applied to the needle in a perpendicular direction, then the angle through which the needle will deflect, is

Solution:
QUESTION: 25

A capillary tube of radius r is immersed in water and water rise in it to a height h. Mass of water in capillary tube is m. If the radius of the tube is doubled, the mass of water that will rise in capillary will be

Solution:
QUESTION: 26

The rotational kinetic energy of a body is E and its moment of inertia is I. The angular momentum is

Solution:
QUESTION: 27

A copper wire of length 4 m and area of cross-section 1.2 cm2 is stretched with a force of 4.8 x 103 N. If the Young's modulus for copper is 1.2 x 1011 N-m-2, then increase in the length of the wire will be

Solution:
QUESTION: 28

A body A moves with a uniform acceleration a and zero initial velocity. Another body B, starts from the same point moves in the same direction with a constant velocity ν. The two bodies meet after a time t. The value of t is

Solution:
QUESTION: 29

A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newton's

Solution:
QUESTION: 30

The rest energy involved in a mass of one atomic mass unit is ---- eV.

Solution:
QUESTION: 31

The element which does not exhibit radioactivity is

Solution:
QUESTION: 32

If the displacement of a particle executing S.H.M. is given by y= 0.30 sin (220t+0.64) in metre, then the frequency and maximum velocity of the particle is

Solution:
QUESTION: 33

The focal length of objective lens of an astronomical telescope is 1 m. If magnifying power of telescope is 20, then what is length of telescope for relaxed eye?

Solution:

For relaxed eye → m = fo/fe
or 20 = 100/fe
or fe = 5 cm
The length of the telescope for relaxed eye is
L = fo + ue = 100 + 5 = 105 cm

QUESTION: 34

Photons of energy 5.5 eV fall on the surface of the metal emitting photoelectrons of maximum kinetic energy 4.0 eV. The stopping voltage required for these electrons are

Solution:
QUESTION: 35

Graph of maximum kinetic energy of the photoelectrons against ν, the frequency of the incident radiation on the metal, is a straight line of slope equal to

Solution:
QUESTION: 36

The horizontal range of a projectile is 4√3 times the maximum height achieved by it, then the angle of projection is

Solution:
QUESTION: 37

A mirror produces magnified erect image of an object. The nature of the mirror is

Solution:
QUESTION: 38

A disc is placed on a surface of pond which has refractive index 5/3. A source of light is placed 4 m below the surface of liquid. The minimum radius of disc needed so that light is not coming out is

Solution:
QUESTION: 39

The distance travelled by light in glass (refractive index =1.5) in a nanosecond will be

Solution:

Speed of light in glass = 3 x 10/1.5 = 2 x 108 ms-1
Distance travelled in one nanosecond
= 2 x 108 x 10-9 = 0.2 m = 20 cm

QUESTION: 40

An achromatic combination of lenses is formed by joining

Solution:
QUESTION: 41

A fan is making 600 rev-min-1. If it makes 1200 rev-m-1, then increase in its angular velocity is

Solution:
QUESTION: 42

A mass suspended from a spring executes simple harmonic motion. When the body is at half the amplitude from the mean position, the ratio of the kinetic energy and the potential energy of the body will be :

Solution:
QUESTION: 43

If a hole is bored along the diameter of the earth and a stone is dropped into hole

Solution:
QUESTION: 44

The depletion layer in the P-N junction region is caused by

Solution:
QUESTION: 45

In a standing wave the distance between two adjacent nodes is equal to

Solution:
QUESTION: 46

At OK temperature, a p-type semiconductor

Solution:
QUESTION: 47

The meniscus of mercury in the capillary tube is

Solution:
QUESTION: 48

Two 220 V, 100 W bulbs are connected first in series and then in parallel. Each time the combination is connected to 220 V ac supply line. The power drawn by the combination in each case respectively will be

Solution:
QUESTION: 49

In electrolysis, the amount of mass of the substance deposited or liberated at an electrode is directly proportional to

Solution:
QUESTION: 50

Two bulbs, one of 50 watt and another of 25 watt are connected in series to the mains. The ratio of the currents through them is

Solution:
QUESTION: 51

A clock with an iron pendulum keeps correct time at 15oC. If the room temperature rises to 20oC, the error in seconds per day will be (Coefficient of linear expansion of iron is 0.000012oC)

Solution:
QUESTION: 52

A given system undergoes a change in which the work done by the system equals the decrease in its internal energy. The system must have undergone an

Solution:
QUESTION: 53

A vessel containing 5 litres of a gas at 0.8 m pressure is connected to an evacuated vessel of volume 3 litres. The resultant pressure inside will be (assuming whole system to be isolated)

Solution:
QUESTION: 54

The scientific principle involved in laser is

Solution:
QUESTION: 55

Dimsensional formula ML2T-3 represents

Solution:
QUESTION: 56

Two sources of same intensity interfere at a point and produced resultant I. When one source is removed, the intensity at that point will be

Solution:
QUESTION: 57

A wave represented by the given equation y = a cos (kx - ωt) is superposed with another wave to form a stationary wave such that the point x = 0 is a node. The equation for the other wave is

Solution:
QUESTION: 58

A Nicol prism can be used

Solution:
QUESTION: 59

A source and listner are both moving towards each other with speed V/10 where V is the speed of sound. If the frequency of the note emitted by the source is f, the frequency heard by the listner would be nearly

Solution:
QUESTION: 60

A ball is dropped from a height h. If the coefficient of restitution be e, then to what height will it rise after jumping tiwce from the ground ?

Solution: