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 magnetic moment of a circular coil carrying current is

Question # 2

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 # 3

The velocity of falling raindrops attains limited value because of

Question # 4

Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)

Question # 5

In an L-R circuit, time constant is that time in which current grows from zero to the value

Question # 6

What remains constant when the earth revolves around the sun?

Question # 7

The angle between rectangular components of a vector is

Question # 8

The direction of induced current is such that it opposes the very cause that has produced it. This is the law of

Question # 9

The motion without consideration of its cause is studied in

Question # 10

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

Question # 11

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

Question # 12

Band spectrum is produced by

Question # 13

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Question # 14

To make the frequency double of an oscillator, we have to

Question # 15

Which of the following is the only vector quantity?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Absolute temperature can be calculated by
A. Mean square velocity
B. Motion of the molecule
C. Both A and B
D. None of these
2 The average binding energy of a nucleus inside an atomic nucleus is about
A. 8 MeV
B. 8 eV
C. 8 Joules
D. 8 ergs
3 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
4 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
5 Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is
A. R/4
B. R/3
C. R/2
D. R
6 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
7 What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value, the mass remaining constant?
A. 12
B. 6
C. 3
D. 2
8 The product of the pressure and volume of an ideal gas is
A. A constant
B. Approximately equal to the universal gas constant
C. Directly proportional to its temperature
D. Inversely proportional to its temperature
9 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator
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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