MHT CET 2024 Physics question
A sonometer wire is in unison with a tuning fork of frequency 'n' when it is stretched by a weight of specific gravity 'd'. when the weight is completely immersed in water, 'x' beats are produced per second then
Answer: (B)
Solution
The frequency of a sonometer wire is . In air the tension is the weight . When the weight is completely immersed in water, the buoyant force reduces the tension to (since the weight has relative density ). The frequency
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