Question # 1

The pitch of sound a determined by its

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Speed

Frequency

Direction

Number of beats

A monochromatic light beam when passed through a prism is.

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Diffracted

Devlated

Polarized

Dispersed

Which of the following properties of sound is affected by change in air temperature.

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Amplitude

Intensity

Frequency

Wavelength

The phenomenon of polarization is done by

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Selective absorption

Scattering of light

Refraction of light

Dispersion of light

The maximum displacement from the undisturbed position of the medium to the crest top is called.

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Wavelength

Amplitude

Period

Frequency

interference and diffraction of light support the

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Wave nature of light

Transverse nature of light waves

Quantum nature of light

Electromagnetic nature of light

The amplitude of sound wave determines its

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Pitch

Loudness

Reverberation

Interference

Interference fringe spacing depends on

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The wavelength of light used

The distance screen from the coherent sources

Separation between the sources

All of the above

Michelson's interferometer can be used to measure.

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Wavelength of light

Intensity of light

Amplitude of disturbances

Frequency of light

The spectrum of radiation due to transitions between energy levels in an atom, other absorption or emission is called.

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Atomic spectrum

Molecular spectrum

Grating spectrum

Normal specturm

Doppler's effect can be applied to.

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Light wave only

sound wave only

Both light waves and sound waves

Study various features of a wave

What will be the effect on the speed of a Transerv wave in a string. If tension is made 4 times.

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Remains the same

Increase a times

Becomes double

Becomes 3 times

Which type of oscillations produce resoncance.

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Free

Forced

Damped

All of these

The speed of bodies exceeding the speed of sound is called.

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Superesonic

Ultrasonic

Infrasonic

Super fast

Wave motion in air consist of

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Longitudinal waves

Transverse waves

Seismic waves

Polarized waves

Which physical properties is most responsible for resonance.

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Frequency

Intensity

Pitch

Loundness

For how long the sensation of sound persists in our brain.

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0.1 s

0.2 s

0.3 s

0.4 s

A polaroid is

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A red light filter

A device used for a analyzing polarized light

A device used in polarimeter

An adjustable shutter

The phenomenon of beats takes place due to

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Longitudinal waves

Transverse waves

Stationary waves

Both a and b

A longitudinal sinusoidal wave has a wavelength of 1 cm and a period of 2s. Its wave velocity is.

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50 cm s-1

0.00t m s-1

100 cm s-1

5 m s-1

Which of the following forms of electromagnetic energy has the longest wavelength.

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Microwaves

Radio waves

Infrared waves

^{Visible light}

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