ECAT Pre General Science Chapter 8 online mcq test with answers for Physics chapter 8 (Waves)

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Samavia Khan 10 - Mar - 2024 08 Min 35 Sec 75/120
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Mr. xall 10 - Feb - 2023 10 Min 08 Sec 65/120
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Nabeel 22 - Feb - 2018 16 Min 00 Sec 60/120
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Sr.#	Question	Answer
1	The restoring force always directed towards the	A. extreme position B. mean position C. both of them D. none of them
2	A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is	A. 2 m B. 1 m C. 0.5 m D. 4 m
3	When an oscillatory motion repeats itself, then this type of motion is called	A. vibratory motion B. constant motion C. fixed motion D. periodic motion
4	Mechanical waves on the surface of a liquid are	A. Transverse B. Longitudinal C. Torsional D. both transverse and longitudinal
5	One complete round trip of the body about its mean position is called	A. displacement B. vibration C. a complete motion D. an acceleration
6	As the bob of the pendulum moves to and fro which of the force is experienced by the bob	A. its weight B. tension in the string C. viscous drag force by air D. all of them
7	SI unit of frequency is	A. second B. hertz C. revolution D. vibrations/sec
8	Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as	A. waves B. beat C. interference D. resonance
9	SI unit of wave length is:	A. Kilometer B. Metre C. Centimetre D. Hertz
10	The wave form of S.H.M will be	A. square wave B. sine wave C. rectified wave D. saw-tooth wave
11	The damping depends upon the	A. amplitude B. sharpness C. both of them D. none of them
12	The bob of a simple pendulum is suspended by	A. string B. heavy inextensible string C. light extensible string D. light inextensible string
13	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
14	Which one is not produced by sound waves in air?	A. Polarization B. Diffraction C. Refraction D. Reflection
15	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
16	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
17	If the length of second pendulum becomes four times then its time period will become	A. Four time B. Two times C. Six times D. Eight times
18	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
19	The speed of sound in a medium depends on	A. The elastic property but not on the inertia property B. The inertia property but not on the elastic property C. The elastic property as well as the inertia property D. Neither the elastic property nor the inertia property
20	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
21	Which one of the following could be the frequency of ultraviolet radiation?	A. 1.0 x 10⁶Hz B. 1.0 x 10⁹Hz C. 1.0 x 10¹²Hz D. 1.0 x 10¹⁵Hz
22	Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of	A. very small energy B. very large energy C. frictional forces D. acceleration due to gravity
23	A second's pendulum is a pendulum whose time period is	A. 1 second B. 2 seconds C. 3 seconds D. 4 seconds
24	A simple pendulum consists of a	A. small light bob B. small heavy bob C. big light bob D. big heavy bob
25	Which of the following changes at an antinode in a stationary wave?	A. Density only B. Pressure only C. Both pressure and density D. Neither pressure nor density
26	In the same medium, velocity of the wave:	A. Goes on increasing B. Remains constant C. Goes on decreasing D. None of these
27	If the length of a simple pendulum is 0.25 m its time period would be	A. 1.0 s B. 2.0 s C. 3.0 s D. 4.0 s
28	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
29	Time period of simple pendulum is independent of	A. length B. mass C. acceleration due to gravity D. none of them
30	The vibratory or oscillatory motion of a body is	A. translatory motion B. back and forth motion about its mean position C. free all motion D. circular motion

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ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

ECAT Pre General Science Physics Chapter 8 Waves

Which one of the following wave motions is transverse:

Which of the following does not exhibit S.H.M?

The time required to complete on vibration is called

Energy is not carried by

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

The principle of superposition states that

Si units of time period is

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

When sound waves travel from air to water which of these remains constant?

Which one of the following elasticizes is possessed by fluids:

Which waves are used in sonography?

The time period of pendulums of different lengths would be

The velocity of sound is greatest in

The maximum displacement of a body on either side of its equilibrium position is called

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

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Time period of a simple pendulum depends upon the

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

The waves produced in a microwave oven have wavelength.

Acceleration of the mass at any instant is given by

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

A swing has

SI unit of wave length is:

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

The expression for restoring force is

There is no net transfer of energy by particle of medium in

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

Which of the following is not mechanical wave?

A heavily damped system has a fairly

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