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

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

Question # 2

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 3

If the length of a simple pendulum is 0.25 m its time period would be

Question # 4

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 5

Time period of a simple pendulum depends upon the

Question # 6

Fidelity refers to

Question # 7

transverse wave motion is possible in:

Question # 8

The velocity of sound at same temperature is maximum in

Question # 9

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

Question # 10

The time required to complete on vibration is called

Question # 11

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

Question # 12

A simple pendulum consists of a

Question # 13

The example of mechanical wave is

Question # 14

The velocity of sound is greatest in

Question # 15

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
2 When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to
A. applied force
B. momentum
C. restoring force
D. none of them
3 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
4 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
5 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
6 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
7 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them
8 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
9 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
10 Which of the following does not exhibit S.H.M?
A. a plucked violin string
B. a mass attached to a spring
C. a train shunting between two terminals
D. a simple pendulum

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