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

A sun rise or sun set, the sun looks reddish because:

Question # 2

Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is

Question # 3

A particle moving in a magnetic field has increase in its velocity, then its radius of the circle

Question # 4

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?

Question # 5

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Question # 6

Planck's constant has the dimensions of:

Question # 7

A particle is moving in a uniform magnetic filed, then

Question # 8

Which one of the following phenomena is not explained by Hugen's construction of wavefront?

Question # 9

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

Question # 10

When we apply reverse bias to a junction diode, it

Question # 11

The number of translation degrees of freedom for a diatomic gas is

Question # 12

A man pushes a wall but fails to displace it. He does:

Question # 13

Light appears to travel in straight lines since

Question # 14

Which of the following is not thermo dynamical function?

Question # 15

The unit of electric current 'ampere' is the amount of current flowing through each of two parallel wires 1 m apart and of infinite length will give rise to a force between them equal to

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In which case application of angular velocity is useful?
A. When a body is rotating
B. When velocity of body is in a straight line
C. When velocity is in a straight line
D. None of these
2 In an L-R circuit, time constant is that time in which current grows from zero to the value
A. 0.63 Io
B. 0.50 Io
C. 0.37 Io
D. Io
3 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
4 The unit of inductance is equivalent to
A. V x s/A
B. V x A/s
C. A x s/v
D. V/A x s
5 Energy is stored in the choke coil in the form of
A. Heat
B. Magnetic energy
C. Electric energy
D. Electro-magnetic energy
6 The average binding energy of a nucleus inside an atomic nucleus is about
A. 8 MeV
B. 8 eV
C. 8 Joules
D. 8 ergs
7 The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90°with the force of the smaller magnitude, then their magnitudes are:
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
8 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
9 A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:
A. 1310 W
B. 670 W
C. 810 W
D. 1210 W
10 A body of mass 2 kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8 m/s2, the height at which the K.E, of the body becomes half its original value is given by:
A. 50 m
B. 12.5 m
C. 25 m
D. 10 m

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