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Two tuning forks of frequencies 256 and 258 vibration /sec are sounded together , and then time interval between consecutive maxima heard by the observer is A ) 2 secB ) 0.5 secC ) 250 secD ) 252 sec |
Answer» B ) 0.5 sec Explanations: n1 = 256 n2 = 258 Both tuning forks are making beats t( for max . ) = 1 / n2 - n1 sec = 1 / ( 258 - 256 ) = 1 / 2 = 0.5 sec |
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