Physics
Intensity of sound at a point is ____ its distance from the source.

directly proportional to square of
inversely proportional to square of
directly proportional to
inversely proportional to

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Physics
Specific gravity is defined as the ratio of

Density of water at 4°C to the density of the substance
Density of the substance to the density of water at 0°C
Density of the substance to the density of water at 4°C
Density of the substance to the density of water

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