
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
Important Questions on Sound


Complete the following sentence:
The pitch of sound increases, if its frequency _____.

If the amplitude of a sound is halved, its loudness becomes _____.

The diagram below shows three different modes of vibration P, Q and R of the same string.
(a) Which vibration will produce a louder sound and why?

The diagram below shows three different modes of vibration P, Q and R of the same string.
(b) The sound of which vibration will have maximum shrillness (i.e., pitch) and why?

The diagram below shows three different modes of vibration P, Q and R of the same string.
(c) What is the ratio of wavelength of vibration P and R?

