Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their (i) loudness (ii) frequencies?
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their (i) loudness (ii) frequencies?

(i) The square of the amplitude determines the loudness.

The loudness ratio is 1:9.

(ii) If the pitch remains constant, the frequency remains constant.

1: 1 ratio of frequencies