1.

Write answers to the following questions .(a) How is sound produced ?(b) What does the intensity of sound depend upon ?(c) Explain how the frequency of oscillation is related to the length of a pendulum and the amplitude of its oscillation.(d) Explain the two ways by which the pitch of the sound generated by a stretched string can be changed.

Answer» Write answers to the following questions .



(a) How is sound produced ?



(b) What does the intensity of sound depend upon ?



(c) Explain how the frequency of oscillation is related to the length of a pendulum and the amplitude of its oscillation.



(d) Explain the two ways by which the pitch of the sound generated by a stretched string can be changed.


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