PPSC Physics Topic 5 MCQ Test With Answer

Questions about Waves and Wave Properties Of Light are included in the PPSC Physics test. Waves transport energy from one place to the other. After the dawn of Quantum Mechanics, there is an ongoing debate about the nature of light and the wave properties it has associated with it. The paper setters need to test the understanding of a student about the Waves and Wave Properties Of Light. Selected candidates in the PPSC physics jobs will have to deal regularly with the Waves and their connections with light. Therefore, the PPSC Physics test applicants need to prepare for this topic.

On IlmKiDunya.com portal, PPSC Physics exam preparation is easier for you by providing PPSC Physics online MCQs test. The PPSC online tests on our website contain the most relevant questions about the tests so you can get prepared about what topics are important and what questions you can expect in the test.

MCQ's Test For PPSC Physics Topic 5 Waves and Wave Properties of Light

Try The MCQ's Test For PPSC Physics Topic 5 Waves and Wave Properties of Light

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PPSC Physics Topic 5 Waves and Wave Properties of Light

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Question # 1

The locus of all points in the same state of vibrations are known as.

Question # 2

A cork moes at 5 m s-1 on the crest of a wave The distance between the crests is 10 m. The frequency of the wave motion is.

Question # 3

The loudness of a sound depend on its

Question # 4

The average amount of energy transported by a wave per unit area per unit time is termed as

Question # 5

A plane of polarization is one in which

Question # 6

Which of the following refers to the distance from crest to crest of a wave.

Question # 7

The amplitude of sound wave determines its

Question # 8

Difference in the density of two medium when waves are passing from one into another medium always results in the change in.

Question # 9

Interference through thin films depends upon

Question # 10

If the period of a wave motion is 2 s and the wave speed is 4 cm s-1 then its frequency is

Question # 11

Doppler's effect can be applied to.

Question # 12

The energy transmitted per second though unit are held perpendicular to the direction of propagation of the wave is called.

Question # 13

The wavelength of Pascha series lies is the

Question # 14

A fringe is a path of.

Question # 15

Two waves of the same frequency and amplitude travelling in opposites directions along the same path in the same medium produce.

Question # 16

To produce beats it is necessary to use two waves.

Question # 17

In which of the following the speed of sound will be maximum under similar conditions.

Question # 18

Huygen's wave theory falls to explain

Question # 19

Tuning fork is a source of.

Question # 20

Which of the following gives discrete emission spectrum.

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Sr.# Question Answer
1 Palaroids can be used
A. To control headlight glare in right driving
B. To determine the concentration of the optically active substances
C. In curtain less windows to adjust the amount of light
D. all of the above
2 A Spectrum of radiation in which the quantity being studied, such as frequency or energy takes on discrete values is called.
A. Continuous spectra
B. Band spectra
C. Discrete spectra
D. Normal spectrum
3 Which of the following is electromagnetic wave.
A. X rays
B. Micro waves
C. Light
D. All of these
4 The phase velocity is the velocity of a point that moves with a wave at constant phase it is also called.
A. Phase speed
B. Wave speed
C. Wave velocity
D. All of these
5 the amplitude of a wave indicates
A. Wavelength
B. Frequency
C. Intensity of wave
D. Nature of wave
6 The interference between two sounds of slightly differed frequency is
A. shock wave
B. Beats
C. Sonic boom
D. Doppler's effect
7 If a wave vibrates 10 times in one second with a speed of 10 m s-1 the wavelength will be.
A. 1 m
B. 10 m
C. 20 m
D. 100 m
8 Light of passing through a polaroid is
A. Plane polarized
B. Unpolarized
C. Circularly polarized
D. Elliptically polarized
9 Tuning fork is a source of.
A. Heat
B. Energy
C. Light
D. Sound
10 The polarization of an electromagnetic wave is determined by
A. The magnetic field
B. The electric field
C. The electric and magnetic fields
D. The field direction of propagation of electromagnetic waves
11 The light rays which combine destructively would mean that resultant
A. Intensity increases
B. Intensity decreases
C. Amplitude increases
D. Amplitude decreases
12 When a newton's right interference pattern a viewd from above by means of reflected light , the central spot is
A. Multicoloured
B. Alternately white and black
C. Bright
D. Dark
13 Newton's rings are experimentally derived from the phenomenon of.
A. Polarization of light
B. Resolution of light
C. Interference of light
D. Diffraction of light
14 When mas of a string is increased 4 times its original valve, the velocity of the wave.
A. Becomes double
B. Reduces to one half
C. Reduces to one fourth
D. Increases 4 times to its original value
15 The energy content of a wave is proportional to its.
A. Wave velocity
B. Wave velocity squared
C. Frequency
D. Amplitude squared
16 Which technique uses underwater sound propagation to detect and locate submerged objects.
A. RADAR
B. LIDAR
C. SONAR
D. LASER
17 Plane polarized light can be produced by
A. Reflection
B. Refraction
C. Scattering of light
D. All of these
18 Newton's rings are formed due to
A. Diffraction of light
B. Interference of light
C. Polarization of light
D. Reflection of light
19 A wave source of frequency 1,000 Hz emits waves of wavelength 0.1 m How long does it take for the waves to travel 2500 m.
A. 4 s
B. 25 s
C. 40 s
D. 100 s
20 The appearance of colures in their film is due to
A. Diffraction
B. Dispersion
C. Interference
D. Polarization

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