ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

Try The MCQ's Test For ECAT Physics Chapter 8 Waves

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ECAT Physics Chapter 8 Waves

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Question # 1

The expression for restoring force is

Question # 2

Time period of a simple pendulum depends upon the

Question # 3

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 4

The frequency of free vibrations is known as

Question # 5

The square of 0.4 is:

Question # 6

For transmission of both transverse and longitudinal waves, we can use:

Question # 7

If the time period a simple pendulum is 2 s, its frequency would be

Question # 8

A physical system under going forced vibrations is known as

Question # 9

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

Question # 10

The number of vibrating body at any instant from its equilibrium position is called

Question # 11

The principle of superposition states that

Question # 12

Ultra-violet rays differ from X-rays in that they

Question # 13

The wave motion set up in any medium depends upon:

Question # 14

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 15

Example of progressive wave is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
2 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
3 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
4 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
5 The loudness and pitch of a sound note depends on
A. Intensity and velocity
B. Frequency and velocity
C. Intensity and frequency
D. Frequency and number of harmonic
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 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
8 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity
9 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
10 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz

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