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

For transmission of both transverse and longitudinal waves, we can use:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The number of vibrating body at any instant from its equilibrium position is called

Question # 6

The frequency of free vibrations is known as

Question # 7

Which one of the following could be the frequency of ultraviolet radiation?

Question # 8

While describing the motion of a simple pendulum, the frictional effects are

Question # 9

Example of vibratory motion is

Question # 10

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 11

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 # 12

The waves which propagate by the collision of material particles are known as

Question # 13

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

Question # 14

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

Question # 15

When the bob of simple pendulum is at extreme position, its K.E. will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
2 What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
A. 1 MHz
B. 10 Hz
C. 1 GHz
D. 100000 Hz
3 When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be
A. P.E=Kx2o
B. P.E= 1/2kxo
C. P.E=1/2Kx2o
D. P.E=Kx2o
4 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
5 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
6 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
7 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
8 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
9 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
10 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them

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