ICSE Class 10 Physics 2017 Paper

The diagram below shows a point source $P$ inside a water container. Four rays $A, B, C$ , $D$ starting from the source $P$ are shown upto the water surface.

Question : 44 of 65

Marks: +1, -0

Loudness of the sound heard.

Solution:

Loudness of sound depends on amplitude (or intensity) of the wave.

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