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

Time period of a simple pendulum depends upon the

Question # 2

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Question # 3

The bob of a simple pendulum is suspended by

Question # 4

The force which opposes the applied force producing the displacement in the spring is called

Question # 5

Smaller the damping, the resonance will be

Question # 6

The speed of sound in a medium depends on

Question # 7

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

Question # 8

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 9

The loudness and pitch of a sound note depends on

Question # 10

Which one of the following wave motions is transverse:

Question # 11

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

Question # 12

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 13

Transverse waves can be set up:

Question # 14

If F=0.04 N and X=4 cm then K=

Question # 15

Decibel is unit of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
2 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
3 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
4 The waves which propagate out in space due to oscillation of electric and magnetic fields are known as
A. e.m. waves
B. mechanical waves
C. sound waves
D. water waves
5 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
6 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
7 The velocity of sound is greatest in
A. Water
B. Air
C. Vacuum
D. Metal
8 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
9 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string
10 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3

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