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Physics

It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.

(i) Name the characteristic of sound associated with the above observation.

(ii) Give a reason for the above observation.

Sound

ICSE 2019

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Answer

(i) Loudness

(ii) Base drum has a greater surface area compared to the side drums so amplitude of vibration of base drum is greater than amplitude of vibration of side drums. Hence Loudness of base drum is increased compared to the side drums and it can be distinctly heard from a distance.

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