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As a wave propagates,...

As a wave propagates,

A

The wave intensity remains constant for a plane wave

B

The wave intensity decreases as the inverse of the distance from the source for a spherical wave

C

The wave intensity decreases as the inverse square of the distance from the source for a spherical wave

D

Total intensity of the spherical wave over the spherical surface centered at the source remains constant at all times

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The correct Answer is:
A, C, D
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