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

In case of mechanical waves, we study the motion of

Question # 2

The wave motion set up in any medium depends upon:

Question # 3

Velocity of sound in vacuum (in m/s) is

Question # 4

A physical system under going forced vibrations is known as

Question # 5

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

Question # 6

The square of 0.4 is:

Question # 7

The vibratory or oscillatory motion of a body is

Question # 8

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 9

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

Question # 10

The force which opposes the applied force producing the displacement in the spring is called

Question # 11

If we increase the length of a simple pendulum four times, its time period will become

Question # 12

The damping depends upon the

Question # 13

Fidelity refers to

Question # 14

The time period of pendulums of different lengths would be

Question # 15

The characteristic of a body executing S.H.M is that its acceleration is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
A. 1 MHz
B. 10 Hz
C. 1 GHz
D. 100000 Hz
2 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
3 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
4 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
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 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
7 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
8 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
9 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them
10 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction

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