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

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 2

The vibratory or oscillatory motion of a body is

Question # 3

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 4

When two waves with same frequency and constant phase difference phase difference interfere

Question # 5

Time period of simple pendulum is independent of

Question # 6

Acceleration of the mass at any instant is given by

Question # 7

A physical system under going forced vibrations is known as

Question # 8

Which type of wave can be set up in solids

Question # 9

When sound waves travel from air to water which of these remains constant?

Question # 10

The maximum displacement of a body on either side of its equilibrium position is called

Question # 11

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 12

Crests and troughs are formed in:

Question # 13

Which of the following is the longitudinal waves?

Question # 14

Laplace formula is derived from

Question # 15

A traveling wave has a shape of:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
2 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
3 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
4 Which of the following changes at an antinode in a stationary wave?
A. Density only
B. Pressure only
C. Both pressure and density
D. Neither pressure nor density
5 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
6 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
7 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
8 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
9 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
10 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them

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