A) 28m
B) 18m
C) 19m
D) 165m
Correct Answer: D
Solution :
Distance of source from reflecting surface \[d=\frac{vt}{2}\] where, \[v=\]velocity of sound, \[t=\]time of echo \[d=\frac{330\times 1}{2}\] \[=165m\]You need to login to perform this action.
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