NAT IIP Physical Science Physics Preparation Online Test for Pakistani Students

MCQ's Test For NAT II Physical Science Physics

Try The 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 lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is

Question # 2

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

Question # 3

Which of the following sources give discrete emission spectrum?

Question # 4

Ball pen function on the principle of

Question # 5

In which of the following states does the incandescent substance give continuous spectrum?

Question # 6

When a hydrogen atom is bombarded, the atom is excited to the n = 4 state of hydrogen atom. The energy released when the atom falls from n = 4 state to the ground state is

Question # 7

Copper and germanium are cooled to 70K from room temperature, then

Question # 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

Question # 9

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:

Question # 10

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

Question # 11

Surface tension of water is due to

Question # 12

A moving charge will gain energy due to the application of

Question # 13

Which of the following is not thermo dynamical function?

Question # 14

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

Question # 15

When n-type of semiconductor is heated

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The modulus of rigidity of a liquid is
A. Zero
B. 1
C. Infinity
D. A value not one of those mentioned above
2 The conductivity of a superconductor is
A. Infinite
B. Very large
C. Very small
D. Zero
3 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
A. 1 N/m
B. 2 x 10-7N/m
C. 1 x 10-2N/m
D. 4 x 102N/m
4 In an A.C. circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle between voltage and current be 45°, the value of inductive reactance will be
A. R/4
B. R/2
C. R
D. Cannot be found with the given data
5 An object is placed at a distance of f/2 from a convex lens. The image will be
A. At one of the foci, virtual and double its size
B. At, 3f/2, real and inverted
C. At 2f, virtual and erect
D. At f, real and inverted
6 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
7 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?
A. The entire of view blocked
B. There is an image of the fly on the photography
C. There is no effect at all
D. There is a reduction in the intensity of the image
8 To explain his theory Bohr used
A. Conservation of linear momentum
B. Conservation of angular momentum
C. Conservation of quantum frequency
D. Conservation of energy
9 The part of a transistor which is heavily doped to produce large number of majority carriers is
A. Emitter
B. Base
C. Collector
D. Any of the above depending on nature of transistor
10 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

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