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

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved

Question # 2

In a simple harmonic motion (SHM), which of the following does not hold?

Question # 3

Bernoulli's equation is based upon law of conservation

Question # 4

The angle between rectangular components of a vector is

Question # 5

A wire is stretched to double of its length. The strain is

Question # 6

To explain his theory Bohr used

Question # 7

A particle moving in a magnetic field has increase in its velocity, then its radius of the circle

Question # 8

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 # 9

Radio waves of constant amplitude can be generated with

Question # 10

Which one of the following phenomena is not explained by Hugen's construction of wavefront?

Question # 11

The volt/metre is the unit of:

Question # 12

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 # 13

The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes

Question # 14

A photoelectric cell coverts

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Electrons in the atom are held in the atom due to
A. Coulomb forces
B. Nuclear forces
C. Gravitational forces
D. Van der Waal's forces
4 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
A. 0.1 watt
B. 1 watt
C. 10 watt
D. 100 watt
5 One cannot see fog because
A. Fog absorbs light
B. The refractive index of fog is infinity
C. Light suffers total reflection at the droplet in a fog
D. Light is scattered by the droplet in fog
6 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
7 The dimensional formula of torque is:
A. [ML2T-2]
B. {MLT-2]
C. [ML-1T-2]
D. [ML-2T-2]
8 A particle moving in a magnetic field has increase in its velocity, then its radius of the circle
A. Decreases
B. Increases
C. Remains the same
D. Becomes half
9 For obtaining appreciable extension, the wire should be
A. Short and thin
B. Long and thin
C. Short and thick
D. Long and thick
10 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator

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