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.
Correct Answer: A
Solution :
The frequency of wave X is lower than wave Y, hence its pitch is lower than wave Y too. The pitch of sound depends on the frequency.
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