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 total energy of spring mass system is

Question # 2

When temperature increase, the frequency of a tuning fork

Question # 3

The velocity of sound in air not effected by changes in

Question # 4

A physical system under going forced vibrations is known as

Question # 5

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

Question # 6

The waves produced in a microwave oven have frequency

Question # 7

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

Question # 8

A traveling wave has a shape of:

Question # 9

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

Question # 10

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

Question # 11

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 # 12

Time period of a simple pendulum depends upon the

Question # 13

Time period of simple pendulum is independent of

Question # 14

The wave motion set up in any medium depends upon:

Question # 15

Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?

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ECAT Physics Chapter 8 Important MCQ's

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 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
3 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
4 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
5 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
6 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
7 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
8 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1
9 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
10 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them

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