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 wave form of S.H.M will be

Question # 2

Longitudinal waves are also called:

Question # 3

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 4

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

Question # 5

For a body executing S. H. M, its

Question # 6

The velocity of sound at same temperature is maximum in

Question # 7

Two sources of sound are said to be coherent if

Question # 8

Fidelity refers to

Question # 9

A physical system under going forced vibrations is known as

Question # 10

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

Question # 11

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 12

Example of progressive wave is

Question # 13

The expression of Hook's law is

Question # 14

The distance covered by the wave during one period is called its:

Question # 15

Smaller the damping, the resonance will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
2 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
3 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
4 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
5 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
6 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
7 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
8 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
9 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
10 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them

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