MHT CET 2023 Physics question
A sonometer wire 'A' of diameter 'd' under tension 'T' having density '' vibrates with fundamental frequency 'n'. If we use another wire 'B' which vibrates with same frequency under tension '2T' and diameter '2D' then density '' of wire 'B' will be
Answer: (C)
Solution
For a sonometer wire of length , the fundamental frequency is where the linear density is . So . For the same length and the same frequency, must
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