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

Question # 2

Laplace formula is derived from

Question # 3

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 4

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 5

Acceleration of the mass at any instant is given by

Question # 6

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 7

SI unit of frequency is

Question # 8

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 9

The speed of sound in a medium depends on

Question # 10

Which waves are used in sonography?

Question # 11

The waves moving from a sitar to a listener in air are

Question # 12

Energy is not carried by

Question # 13

In compressional wave,the layer of medium having reduced pressure is called:

Question # 14

The waves produced in a microwave oven have frequency

Question # 15

The principle of superposition states that

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
2 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
3 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
4 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
5 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
6 When two waves with same frequency and constant phase difference phase difference interfere
A. There is a gain of energy
B. There is a loss of energy
C. The energy is redistributed and the distribution changes with time
D. The energy is redistributed and the distribution remains constant with time
7 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
8 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
9 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
10 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string

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