Question # 1

The note of the lowest frequency is called

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beat

Overtone

Fundamental note

Harmonic note

The phase velocity is the velocity of a point that moves with a wave at constant phase it is also called.

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Phase speed

Wave speed

Wave velocity

All of these

The perceived fundamental frequency of a sound is called.

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Pitch

Timber

Loudness

Wavelength

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

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Gases

Metals

Liquids

Insulators

The central ring is bright in case of Newton's rigs produced by

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Reflection

Wedges

Refraction

Transmission

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

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Angle

Time

Length

Temperature

Which of the following is a transverse wave.

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Sound wave

Shock wave

Hair wave

Radiowave

The loudness of a sound depends on its

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Wavelength

Frequency

Wave amplitude

Regularity

When the source and observer are moving away from each other the apparent pitch will

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Increases

Decreases

Be zero

Be infinite

Newton's rings are experimentally derived from the phenomenon of.

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Polarization of light

Resolution of light

Interference of light

Diffraction of light

All particles, of a wave front vibrate

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In same phase

In opposite phase

Upward down

Left and right

When a transverse wave is reflected on going from a more dense to a less dense medium.

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There is no phase shift

There is a 180 ^o phase shift

There is a phase shift of 360 ^o

A crest is transformed to a trough

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

Waves that have the same direction of vibration as their direction of travel are.

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Longitudinal waves

Transverse wave

Standing waves

hair wave

The speed of a sound wave is independent of

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Nature of medium

Pressure

Temperature

Mass and energy

The dispersive power of a grating is

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Light used

Separation of lines

Frequency of light used

Independent of wavelength

Which of the following medium can transmit both transverse and longitudinal waves.

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Solid

Gas

Liquid

Plasma

Frequency less than 120 Hz are known as

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Infrasonic

Ultra sonics

Super sonics

Infrared

When a newton's right interference pattern a viewd from above by means of reflected light , the central spot is

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Multicoloured

Alternately white and black

Bright

Dark

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 analysis is employed to convert a complex sound into notes.

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Fourier theorem

Milleman theorem

Lissajoes theorem

Demorgan's law

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