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 220 V, 50 Hz. A.C. source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit?

Question # 2

A wire of radius r has resistance R, It it is stretched to a wire of r/2 radius, then the resistance becomes

Question # 3

If a diamagnetic substance is brought near north or south pole of a bar magnet it is

Question # 4

What remains constant in the field of central force?

Question # 5

A (100 W, 200 V) bulb is connected to a 160 V power supply. The power consumption would be

Question # 6

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 7

A person standing on a rotating platform has his hands lowered. He suddenly outstretches his arms. The angular momentum

Question # 8

Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the force is

Question # 9

The force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

Question # 10

A fly is sitting on the objective of a telescope pointed towards the moon.
What effect is expected on the photography of the moon taken through the telescope?

Question # 11

Light appears to travel in straight lines since

Question # 12

A 2 kg body and a 3 kg body have equal momentum. If the kinetic energy of 3 kg body is 10 J, the KE of 2 kg body will be

Question # 13

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

Question # 14

If the dot product of two non-zero vectors vanishes, the vectors will be

Question # 15

The peak voltage in 220 volt A.C. supply is nearly

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
2 The nuclear model of atom was proposed by
A. J.J Thomson
B. E. Rutherford
C. Neil Bohr
D. Summerfield
3 If a diamagnetic substance is brought near north or south pole of a bar magnet it is
A. Attracted by the poles
B. Repelled by the poles
C. Repelled by north pole and attracted by the south pole
D. Attracted by the north pole and repelled by the south pole
4 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator
5 A monochromatic source of light is placed at a large distance d from a metal surface. Photoelectrons are ejected at rate n, kinetic energy being E. If the source is brought nearer to distance d/2, the rate and kinetic energy per photoelectron become nearly
A. 2n and 2E
B. 4n and 4E
C. 4n and E
D. N and 4E
6 Which of the modulus of elasticity is involved in compression a rod to decrease its length?
A. Young's modulus
B. Bulk modulus
C. Modulus of rigidity
D. None of the above
7 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
8 To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
A. Parallel
B. Antiparallel
C. At angle 60°
D. Perpendicular to each other
9 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
10 In a simple harmonic motion (SHM), which of the following does not hold?
A. To force on the particle is maximum at the ends
B. The acceleration in minimum at the mean position
C. The potential energy is maximum at the mean position
D. The kinetic energy is maximum at the mean position

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