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

When a wave is travels from one place to another, it transfers:

Question # 2

Which of the following is not mechanical wave?

Question # 3

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 4

Which one of the following wave motions is transverse:

Question # 5

The wave form of S.H.M will be

Question # 6

While describing the motion of a simple pendulum, the frictional effects are

Question # 7

The speed of sound in a medium depends on

Question # 8

The square of 0.4 is:

Question # 9

The waves produced in a microwave oven have frequency

Question # 10

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 11

A second's pendulum is a pendulum whose time period is

Question # 12

SI unit of wave length is:

Question # 13

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

Question # 14

The velocity of sound in air not effected by changes in

Question # 15

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
2 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
3 If the length of second pendulum becomes four times then its time period will become
A. Four time
B. Two times
C. Six times
D. Eight times
4 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
5 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
6 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
7 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
8 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
9 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
10 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound

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