Answers

2016-05-02T22:18:39+05:30
Speed=distance wave travelled/time taken
there for by transforming time to LHS side
speed×time=speed
when fork exibute 100 vibration since vibration is taken as frequency ...we can take it has time
therefore
speed of waves×frequency of wave=distance
330×100=33000m
therefore it is a dostance
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