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

What is the average energy of N molecules of monoatomic gas?

Question # 2

The force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

Question # 3

A photoelectric cell coverts

Question # 4

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 # 5

The volt/metre is the unit of:

Question # 6

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

Question # 7

The smooth or steady stream-line flow is know as

Question # 8

In Young's experiment, two coherent sources are placed 0.90 mm apart and the fringes are observed one metre away. If its produces the second dark fringe at a distance of 1 mm from the central fringe, the wavelength of monochromatic light used would be

Question # 9

How does the Young's modulus vary with the increase of temperature?

Question # 10

The velocity of falling raindrops attains limited value because of

Question # 11

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

Question # 12

One cannot see fog because

Question # 13

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 # 14

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

Question # 15

A wire of radius r has resistance R, It it is stretched to a wire of r/2 radius, then the resistance becomes

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)
A. 3.2 x 10-21 J
B. 3.2 x 10-19 J
C. 7 x 10-25 J
D. 9 x 10-32 J
2 A photoelectric cell coverts
A. Electrical energy to light energy
B. Light energy to light energy
C. Light energy to electrical energy
D. Light energy to elastic energy
3 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
4 At constant volume temperature is increased. Then
A. Collision on walls will be less
B. Number of collisions per unit time will increase
C. Collisions will be in straight lines
D. Collisions will not change
5 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
6 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
7 How does the Young's modulus vary with the increase of temperature?
A. Decrease
B. Increases
C. Remains constant
D. First increases and then decreases
8 The angle between rectangular components of a vector is
A. 0°
B. 60°
C. 90°
D. 120°
9 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
10 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

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