A) 28 m
B) 18 m
C) 19 m
D) 16.5 m
Correct Answer: D
Solution :
\[2d=v\times t\], where \[v=\]velocity of sound = 332 \[m/s\] t = Persistence of hearing = \[\frac{1}{10}\sec \]. Þ \[d=\frac{v\times t}{2}=\frac{332\times \frac{1}{10}}{2}=16.5\]\[m\]You need to login to perform this action.
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