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

Which quantity is increased in step-down transformer?

Question # 2

The magnetic moment of a circular coil carrying current is

Question # 3

Bernoulli's equation is based upon law of conservation

Question # 4

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 # 5

To increase the magnification of a telescope

Question # 6

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

Question # 7

A prism splits a beam of white light into its seven constituent colors. This is so because

Question # 8

To explain his theory Bohr used

Question # 9

Electrons in the atom are held in the atom due to

Question # 10

When n-type of semiconductor is heated

Question # 11

Light appears to travel in straight lines since

Question # 12

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

Question # 13

A particle moves along a circular path under the action of a force. The work done by the force is

Question # 14

The velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is:

Question # 15

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In which of the following states does the incandescent substance give continuous spectrum?
A. Vapours in atomic state
B. Vapours in molecular state
C. Solid or fluid in bulk state
D. Solid or fluid in plasma state
2 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
3 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
4 Which of the following is a scalar quantity?
A. Density
B. Displacement
C. Torque
D. Weight
5 A point charge Q is placed at the mid-point of a line joining two charges, 4q and q. If the net force on charge q is zero, then Q must be equal to
A. -q
B. +q
C. -2q
D. +4q
6 The incorrect statement regarding the lines of force of the magnetic field B is
A. Magnetic intensity is a measure of lines of force passing through unit area held normal to it
B. Magnetic lines of force form a close curve
C. Inside a magnet, its magnetic lines of force move from north pole of a magnet towards its south pole
D. Due to a magnet magnetic lines of force never cut each other
7 Which of the following sources give discrete emission spectrum?
A. Incandescent electric bulb
B. Sun
C. Mercury vapour lamp
D. Candle
8 The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is
A. Double the earlier value
B. Unchanged
C. More than doubled
D. Less than doubled
9 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
10 If the earth were to rotate faster, than its present speed the weight of an object will
A. Increase at the equator but remain unchanged at the poles
B. Decrease at the equator but remain unchanged at the poles
C. Remain unchanged at the decrease but decrease at the poles
D. Remain unchanged at the equator but increase at the poles

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