ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

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

Question # 2

Which one of the following is an example of resonance

Question # 3

The vibratory or oscillatory motion of a body is

Question # 4

A heavily damped system has a fairly

Question # 5

The time period of pendulums of different lengths would be

Question # 6

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 7

The square of 0.4 is:

Question # 8

The expression for restoring force is

Question # 9

Example of vibratory motion is

Question # 10

Two sources of sound are said to be coherent if

Question # 11

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

Question # 12

Which type of wave can be set up in solids

Question # 13

Which of the following does not exhibit S.H.M?

Question # 14

Waves transport energy

Question # 15

For a body executing S. H. M, its

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
2 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
3 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound
4 The number of vibrating body at any instant from its equilibrium position is called
A. displacement
B. frequency
C. amplitude
D. time period
5 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
6 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
7 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
8 Mechanical waves on the surface of a liquid are
A. Transverse
B. Longitudinal
C. Torsional
D. both transverse and longitudinal
9 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
10 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola

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