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

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

Question # 2

The restoring force always directed towards the

Question # 3

The loudness and pitch of a sound note depends on

Question # 4

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

Question # 5

Example of progressive wave is

Question # 6

The waves which propagate through the oscillations of material particles are known as:

Question # 7

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 8

The waves produced in a microwave oven have frequency

Question # 9

Which of the following changes at an antinode in a stationary wave?

Question # 10

The speed of sound in a medium depends on

Question # 11

Si units of time period is

Question # 12

Of the following, the option ______ reminds of longitudinal waves.

Question # 13

The principle of superposition states that

Question # 14

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

Question # 15

Mechanical waves on the surface of a liquid are

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 SI unit of frequency is
A. second
B. hertz
C. revolution
D. vibrations/sec
3 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
4 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
5 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them
6 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
7 A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
8 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
9 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
10 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave

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