1.

The length of a sonometer wire tuned to a frequency of 250 Hz is 0.60 metre. The frequency of tuning fork with which the vibrating wire will be in tune when the length is made 0.40 metre is                                 [JIPMER 2002]

A. 250 Hz
B. 375 Hz
C. 256 Hz
D. 384 Hz
Answer» C. 256 Hz


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