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Sound waves from a tuning fork F reach a pointP by two separate routes FAP and FBP (whenFBP is greater than FAP by 12 cm there is si-lence at P). If the difference is 24 cm thesound becomes maximum at P but at 36 cmthere is silence again and so on. If velocity ofsound in air is 330 ms^-1, the least frequency oftuning fork is:(A) 1537 Hz(C) 1400 Hz10.(B) 1735 Hz(D) 1375 Hz |
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