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

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

Question # 2

One complete round trip of the body about its mean position is called

Question # 3

The wave motion set up in any medium depends upon:

Question # 4

The velocity of sound is greatest in

Question # 5

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

Question # 6

The total energy of spring mass system is

Question # 7

The distance covered by the wave in one second is:

Question # 8

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 9

The expression of Hook's law is

Question # 10

The frequency of free vibrations is known as

Question # 11

Example of progressive wave is

Question # 12

The velocity of sound in air depends upon

Question # 13

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Question # 14

Si units of time period is

Question # 15

Decibel is unit of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
2 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
3 Which of the following does not exhibit S.H.M?
A. a plucked violin string
B. a mass attached to a spring
C. a train shunting between two terminals
D. a simple pendulum
4 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
5 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
6 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
7 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
8 SI unit of frequency is
A. second
B. hertz
C. revolution
D. vibrations/sec
9 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
10 Acceleration of the mass at any instant is given by
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x

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