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Earn 100

The amount of sound energy passing each second through unit area is called the _____________ of sound.

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Important Questions on Sound

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It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
Name the characteristic of sound associated with the above observation.

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It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums. Give a reason for the above observation.
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Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their intensities?
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Conduct an experiment to know the relationship between the intensity of sound produced by a body and its amplitude.
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Loud sound can travel a larger distance, due to _____.
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Which characteristic of a sound wave determines its loudness and has it loudness related to it?
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The intensity of 60 dB sound corresponds to
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Distinguish between intensity of sound and loudness.
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A key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case:
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A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
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Differentiate between the loudness and intensity of sound.
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The intensity of sound wave gets reduced by 20% on passing through a slab. The reduction in intensity on passing through two consecutive slabs is:
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A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
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What is the unit to measure the sound intensity?
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Distinguish between loudness and intensity of sound.
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Distinguish between: Intensity and loudness.

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Cotyledons are also called-
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When we change a feeble sound to a loud sound, we increase its:
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Assertion: The loudness of sound is measured in decibel.
Reason: If sound waves have a large amplitude then the sound will be loud.
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The loudness of a sound _____ with the increase in the distance between the listener and the source.