Question # 1

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

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N2

O2

CO2

H2

The wave phenomenon that classifies light as a transverse wave is.

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Polarization

Diffraction

Interference

Refraction

LASER is a device which can produce

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Monochromatic beam of light

Coherent beam of light

An intense beam of lgiht

All of these

If a wave vibrate 10 times in 1 s with a speed of 10 m s-1 the correct wavelength of the wave is.

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1 m

10 m

20 m

100 m

The variation in the speed of sound with temperature is greater in.

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Gases

Metals

Liquids

Insulators

A water wave is an example of.

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Transverse wave

Longitudinal wave

Hair wave

Shock wave

Wave motion in air consist of

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Longitudinal waves

Transverse waves

Seismic waves

Polarized waves

A pulse on the string is inverted when it is reflected from

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Free end

Fixed end

Either of the two

Rubber cord

Which of the following properties of light does not very with the nature of the medium.

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Amplitude

Frequency

Wavelength

Time period

The penetrating power of X rays is least with materials of.

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High mass density

High volume density

High electron density

High weight

Wave length of a LASER can be sued as a standard of.

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Angle

Time

Length

Temperature

In a diffraction pattern, the width of any fringe is.

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Directly proportional to slit width

Inversely proportional to slit width

independent of slit width

Zero

The ratio of the velocity of sound in hydrogen to the velocity of sound in oxygen is

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4:1

16:1

2:1

8:1

The amplitude of sound wave determines its

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Pitch

Loudness

Reverberation

Interference

Which of the following are examples of transverse and a longitudinal wave.

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Radio and sound waves

Radio and light waves

Light and water ripples

Light and sound waves

the amplitude of a wave indicates

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Wavelength

Frequency

Intensity of wave

Nature of wave

In the experiment of production of X rays the anti cathode should be bombarded with.

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A particles

Beta particles

Electrons

Protons

A wave source of frequency 1000 Hz emits waves of wavelength 0.1 m How long does is take for the waves to travel 2500 m.

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20 s

25 s

40 s

100 s

In a stationary wave the particle velocity at the node is

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Zero

Constant

Minimum

Maximum

A water wave is an example of

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Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

We can hear beats when the difference in the frequencies of two sounding bodies is not more than.

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2

4

6

10

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PPSC Physics Chapter 5 Waves and Wave Properties of Light MCQs With Answers

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