As a wave propagates,which of the following s | vedclass

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(A, C) plane wave does not have any radial dependence,so it travels with constant intensity.For a spherical wave,the power $P$ emitted by the source i

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

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(A, C) plane wave does not have any radial dependence,so it travels with constant intensity.For a spherical wave,the power $P$ emitted by the source is distributed over the surface area of a sphere of radius $r$,which is $4 \pi r^2$.Thus,the intensity $I$ is given by $I = \frac{P}{4 \pi r^2}$.This shows that the intensity of a spherical wave decreases as the inverse square of the distance from the source $(I \propto \frac{1}{r^2})$.Additionally,the total power passing through any spherical surface centered at the source remains constant,but the intensity (power per unit area) decreases with distance.Therefore,options $A$ and $C$ are correct.

As a wave propagates,which of the following statements is correct?

Similar Questions

If the separation between the screen and the source is increased by $2\%$,what would be the effect on the intensity?

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