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

The volt/metre is the unit of:

Question # 2

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

Question # 3

To increase the magnification of a telescope

Question # 4

When sound waves travel from air to water which of these remains constant?

Question # 5

When light wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however, light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters?

Question # 6

To explain his theory Bohr used

Question # 7

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 8

There are discrete energy levels in atoms. It was first experimentally demonstrated by

Question # 9

In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion

Question # 10

A body moves a distance of 10 m along a straight line under the action of a force of 5 Newton's. If the work done is 25 joules, the angle which the force takes with the direction of motion of the body is:

Question # 11

When boron is added as an impurity to silicon, the resulting material is.

Question # 12

Which of the modulus of elasticity is involved in compression a rod to decrease its length?

Question # 13

When n-type of semiconductor is heated

Question # 14

At constant volume temperature is increased. Then

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A person standing on a rotating platform has his hands lowered. He suddenly outstretches his arms. The angular momentum
A. Becomes zero
B. Increases
C. Decreases
D. Remains the same
2 Steel is preferred for making springs over copper. Why?
A. Steel is cheaper
B. Young's modulus of steel is more than that of copper
C. Young's modulus of copper is more than that of steel
D. Steel is less likely ot be oxidized
3 At 0°K which of the following properties of a gas will be zero?
A. Kinetic energy
B. Potential energy
C. Vibrational energy
D. Density
4 A particle moves along a circular path under the action of a force. The work done by the force is
A. Zero
B. Positive and non-zero
C. Negative and non zero
D. None of the above
5 In Which case does the potential energy decreases?
A. On compressing a spring
B. On stretching a spring
C. One moving a body against gravitational force
D. One the rising of an air bubble in water
6 A cable breaks if stretched by more than 2 mm. It is cut into two equal parts. How much either part can be stretched without breaking?
A. 0.25 m
B. 0.5 m
C. 1 mm
D. 2 mm
7 A bullet is shot from a rifle. As a result the rifle recoils. The kinetic energy of rifle as compared to that of bullet is
A. Less
B. Greater
C. Equal
D. Cannot be concluded
8 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
9 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
10 A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be
A. 2000 ohm
B. 4000 ohm
C. 6000 ohm
D. 8000 ohm

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