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

Which one of the following elasticizes is possessed by fluids:

Question # 2

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

Question # 3

The principle of superposition states that

Question # 4

Which one of the following wave motions is transverse:

Question # 5

When an oscillatory motion repeats itself, then this type of motion is called

Question # 6

The speed of sound in a medium depends on

Question # 7

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

Question # 8

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 9

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 # 10

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

Question # 11

The total energy of spring mass system is

Question # 12

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 13

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

Question # 14

Which of the following is the longitudinal waves?

Question # 15

The damping depends upon the

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Sr.# Question Answer
1 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:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
2 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
3 When a body is performing S.H.M., its acceleration is
A. inversely proportional to the displacement
B. directly proportional to the applied force
C. directly proportional to the amplitude
D. directly proportional to the displacement but in opposite direction
4 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
5 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
6 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
7 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
8 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
9 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
10 Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?
A. 400 m/sec
B. 40 m/sec
C. 430 m/sec
D. 300 m/sec

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