. A stone hang from the free end of a sonometer wire whose vibrating lengthIS 1, when tuned to a tuning fork, is 40 cm
When the stone hangs wholly immersed in water, the resonant length is reduced to 30 cm. The relative density of the stone is
A. 16/9
B. 16/7
C. 16/5
D. 16/3
Best Answer
Ans: B
where m = mass of stone. If r is the density of stone and V its volume, then m = rV, when the stone is wholly immersed in water of density r’, the effective weight of stone
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