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

Which one of the following elasticizes is possessed by fluids:

Question # 2

A simple pendulum consists of a

Question # 3

In stationary waves

Question # 4

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 5

The portion of the water above its mean level forms a:

Question # 6

The bob of a simple pendulum is suspended by

Question # 7

If the mass of the simple pendulum becomes double, its time period

Question # 8

If a wave can be polarized, it must be

Question # 9

The waves which propagate through the oscillations of material particles are known as:

Question # 10

The expression of Hook's law is

Question # 11

The distance covered by the wave in one second is:

Question # 12

The time required to complete on vibration is called

Question # 13

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

Question # 14

If we increase the length of a simple pendulum four times, its time period will become

Question # 15

The velocity of sound at same temperature is maximum in

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
2 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
3 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
4 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
5 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
6 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
7 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
8 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
9 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
10 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above

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