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

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

Question # 2

If the length of second pendulum becomes four times then its time period will become

Question # 3

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 4

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Question # 5

Smaller the damping, the resonance will be

Question # 6

The distance covered by the wave in one second is:

Question # 7

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 8

Crests and troughs are formed in:

Question # 9

The velocity of sound in air depends upon

Question # 10

The restoring force always directed towards the

Question # 11

The waves produced in a microwave oven have frequency

Question # 12

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 13

Angular frequency 'w' is basically a characteristics of

Question # 14

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 15

The total energy of spring mass system is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
2 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
3 If a simple pendulum is shifted from karachi to K-2 cliff, its time period
A. remains the same
B. decreases
C. increases
D. none of them
4 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
5 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
6 When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves
7 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
8 If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
A. diffraction
B. beat
C. interference
D. resonance
9 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
10 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves

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