A stretched wire of some length under a tension is vibrating with its
fundamental frequency. Its length is decreased by 21%. Now its
fundamental freequency :
A)increases by 50%
B)increases by 100%
C)decreases by 50%
D)decreases by 25%
A)increases by 50%
B)increases by 100%
C)decreases by 50%
D)decreases by 25%
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