An echo repeats two syllables.If the velocity of sound is 330 m/s , then the distance of the reflecting surface is-
a) 66.0 m
b) 33.0 m
c) 99.0 m
d) 16.5 m

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@amistre64 @TuringTest @hartnn @ganeshie8 @ghazi @theyatin

i am not sure about this , but possibly its 66 m

yaa its right!!!

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