NEET UG PHYSICS MCQ: WAVES

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Understanding +4 | -1

The equation for spherical progressive wave is (where

r

is the distance from the source)

View answer and explanation

Correct option: D

y = \frac{a}{r}\,\,\sin \left( {\omega t - kx} \right)

Option D (

y = \frac{a}{r}\,\,\sin \left( {\omega t - kx} \right)

) is correct because the amplitude of a spherical wave decreases inversely with the distance from the source.

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