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 henry is the unit for

Question # 2

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

Question # 3

The essential distinction between X-rays andγ-rays is that

Question # 4

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

Question # 5

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

Question # 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

Question # 7

If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will

Question # 8

The part of a transistor which is heavily doped to produce large number of majority carriers is

Question # 9

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

Question # 10

Quantity that remains unchanged in a transformer is

Question # 11

For obtaining appreciable extension, the wire should be

Question # 12

A particle is moving in a uniform magnetic filed, then

Question # 13

Ball pen function on the principle of

Question # 14

A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:

Question # 15

Boyle's law is applicable in

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Which quantity is increased in step-down transformer?
A. Current
B. Voltage
C. Power
D. Frequency
2 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
3 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
4 Which of the following sources give discrete emission spectrum?
A. Incandescent electric bulb
B. Sun
C. Mercury vapour lamp
D. Candle
5 The henry is the unit for
A. Resistance
B. Magnetic flux
C. Magnetic field
D. Inductance
6 When we apply reverse bias to a junction diode, it
A. Lowers the potential barrier
B. Raise the potential barrier
C. Increase the majority carrier current
D. Increase the minority carrier current
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 mass of a proton is 1847 times that of an electron. An electron and a proton are projected into a uniform electric field in a direction at right angles to the direction of the field with the same initial kinetic energy.The
A. Both the trajectories will be equally curved
B. The proton trajectory will be less curved than the electron trajectory
C. The electron trajectory will be less curved than the proton trajectory
D. The relative curving of the trajectories will be dependent on the value of the initial kinetic energy
9 Which one of the following is a simple harmonic motion?
A. Wave moving through a string fixed at both ends
B. Earth spinning about its own axis
C. Ball bouncing between two rigid vertical walls
D. Particle moving in a circle with uniform speed
10 A prism splits a beam of white light into its seven constituent colors. This is so because
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Energy of different colors is different
D. Velocity of different colors is different

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