NEET Questions Solved


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

(1) 250 Hz

(2) 375 Hz

(3) 256 Hz

(4) 384 Hz

(2) n1l1=n2l2250×0.6=n2×0.4n2=375

n2=375Hz

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