A stationary point source of sound emits sound uniformly in all directions in a…
Physics · JEE Main · NTA Exams — Oscillations and Waves
A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is
- \(\frac{3}{2}\)
- \(\frac{4}{9}\)
- \(\frac{2}{3}\)
- \(\frac{9}{4}\)
Answer
(A) 3 2
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