1.

Find the frequency of minimum distance between compression & rarefaction of a wire. If the length of the wire is 1m & velocity of sound in air is 360 m/s     [CPMT 2003]

A.   90 sec?1        
B.   180s?1
C.   120 sec?1     
D.   360 sec?1
Answer» B.   180s?1


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