Question # 1

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

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Wave speed

Wave intensity

Wavelength

Wave amplitude

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

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1/8 C s-1

1/2 C s-1

2 C s-1

8 C s-1

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

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Intensity of sound

Pitch of sound

Loudness of sound

Quality of sound

The loudness of a sound depends on its

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Wavelength

Frequency

Wave amplitude

Regularity

Blue colour of sky is due to.

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Diffraction

Reflection

Polarization

Scattering

A wave that consists of oscillations occurring perpendicular to the direction of energy transfer is called.

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Transvers wave

Longitudinal wave

Stationary wave

Shock wave

A sheet of transparent material with many fine equally spaced lines ruled parallel on its surface is called

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Interferometer

Grating element

Ruler

Patch

Which are different types of emission spectrum

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Continues spectrum

Line spectrum

Band spectrum

all of the above

In an oscillating system damping means reduction in

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Frequency

Wavelength

Amplitude

Period

Which effect explain the frequency shift that occurs when there is motion sound a listener or both relative to the medium.

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Early effect

Doppler's effect

Hall effect

Zeeman effect

A stretched wire with clamped ends has a fundamental frequency of 1,000 Hz. What will be the new fundamental frequency if tension in the wire is increased by 2%

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980 Hz

1,000 Hz

1,010 Hz

1,020 Hz

The velocity of sound will be greater in.

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Air

Water

Solids

Vacuum

The sweetness or harshness of a sound depends upon its

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Wavelength

Frequency

Amplitude

Regularity

When sound waves enter a different medium the quantity that remains unchanged a.

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Wavelength

Speed

frequency

Intensity

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

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