Question # 1

A water wave is an example of

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Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

Hearing damage is possible at sound pressure of

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0 dB

50 dB

130 dB

195 dB

Mostly widely used types of gas LASER are.

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Neon

Argon ion

Helium

All of these

A sound wave is an example of

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Transverse wave

longitudinal waves

Hair wave

Stationary wave

Which is the best sound source to produce a pure note.

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Tuning fork

Flute

Drum

Harmonium

The velocity of the wave could be increased by

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Reducing the amplitude

Decreasing the frequency

Increasing the period

Stretching the spring more

A water wave is an example of

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Electromagnetic wave

Longitudinal wave

Transverse wave

Reverberation

Which of the following is electromagnetic wave.

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X rays

Micro waves

Light

All of these

Plane polarized light can be produced by

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Reflection

Refraction

Scattering of light

All of these

Newton's rings are formed due to

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Diffraction of light

Interference of light

Polarization of light

Reflection of light

If in Young's double slit experiments the separation between two slits is halved then the fringe width

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Remains unchanged

Becomes double

Reduces to half

Becomes 3 times

The perceived fundamental frequency of a sound is called.

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Pitch

Timber

Loudness

Wavelength

The energy content of a wave is proportional to its.

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Wave velocity

Wave velocity squared

Frequency

Amplitude squared

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

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Interferometer

Grating element

ruler

Patch

Two tuning forks of frequencies 260 Hz and 257 Hz are sounded together the number of beats produced per seconds is.

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1

3

4

257

Huygen's concept of secondary waves.

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Allow us to find the focal length of a thick lens

Is a geometrical method to find a wave front.

Is used to determine the velocity of light

Is used to explain polarization

Wave motion in air consist of

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Longitudinal waves

Transverse waves

Seismic waves

Polarized waves

The quality of sound

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Decreases with pitch

Varies directly as its pitch

Varies inversely as its pitch

Depends upon the overtones present there

What is the change in path when sound wave is reflected from a rigid support.

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Lamda /2

Lamda

2 lamda

Zero

What will be the frequency it an employ vessel is filled with water.

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Increases

Decreases

Remain unchanged

Fundamental

Which physical properties is most responsible for resonance.

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Frequency

Intensity

Pitch

Loundness

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