CBSE Class 9 Answered
Numerical
Asked by | 29 May, 2008, 09:41: PM
Expert Answer
speed = distance / time
here d = 30m
t' = 2t =0.2 sec
t = 0.1 sec
so velocity of sound = 30m /0.1 sec
= 300m/sec.
regards
toppers expert
Answered by | 30 May, 2008, 01:58: AM
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