1.

The diagram represents two different sound waves.

A. The frequency of X is less than Y and pitch of X is less than Y.
B. The frequency and pitch of X is same as the frequency and pitch of Y.
C. The frequency of X is less than Y but its pitch is same as Y.
D. The frequency of X is same as Y but its pitch is higher than Y.
Answer» B. The frequency and pitch of X is same as the frequency and pitch of Y.


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