NAT IIP Physical Science Physics Preparation Online Test for Pakistani Students

MCQ's Test For NAT II Physical Science Physics

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NAT II Physical Science Physics

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Question # 1

In a voltmeter the conduction takes place due to

Question # 2

A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if

Question # 3

For production of beats the two sources must have

Question # 4

What remains constant in the field of central force?

Question # 5

The average binding energy of a nucleus inside an atomic nucleus is about

Question # 6

In Which case does the potential energy decreases?

Question # 7

The angle between rectangular components of a vector is

Question # 8

A piece of fuse wire melts when a current of 15 ampere flows through it.
With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Question # 9

The nucleus 6C12 absorbs an energetic neutron and emits a beta particle (β). The resulting nucleus is

Question # 10

In a simple harmonic motion (SHM), which of the following does not hold?

Question # 11

The length of a telescope is 36 cm. The focal lengths of its lenses can be

Question # 12

According to Stoke's law, drag force depends on

Question # 13

Absolute temperature can be calculated by

Question # 14

In an L-R circuit, time constant is that time in which current grows from zero to the value

Question # 15

What remains constant when the earth revolves around the sun?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 There are discrete energy levels in atoms. It was first experimentally demonstrated by
A. Rutherford's experiment
B. Franck Hertz experiment
C. Marsden's experiment
D. Somerfield experiment
2 As the electron in Bohr orbit of hydrogen atom passes from stat n = 2 to n = 1, the kinetic energy K and potential energy U change as
A. K two fold, U also two fold
B. K four fold, U also four fold
C. K four fold, U two fold
D. K two fold, U four fold
3 All of the following statements are correct except
A. The total focal length of astronomical telescope is the sum of the focal lengths of its two lenses
B. The image formed by the astronomical telescope is always erect because the effect of the combination of the two lenses is divergent
C. The magnification of an astronomical telescope can increases by decreasing the focal length of the eyepiece
D. The magnifying power of the refracting type of astronomical telescope is the ratio of the focal length of the objective to that of the eye piece
4 Which one of the following is a simple harmonic motion?
A. Wave moving through a string fixed at both ends
B. Earth spinning about its own axis
C. Ball bouncing between two rigid vertical walls
D. Particle moving in a circle with uniform speed
5 Quantity that remains unchanged in a transformer is
A. Voltage
B. Current
C. Frequency
D. None of these
6 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
7 A cable that can support a load W is cut into two equal parts. The maximum load that can be supported by either part is:
A. W/4
B. W/2
C. W
D. 2W
8 The number of translation degrees of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
9 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is:
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
10 What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value, the mass remaining constant?
A. 12
B. 6
C. 3
D. 2

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