Question: A man standing between two parallel hills fires a gun and hears two echoes, one 2.5 s and the other 3.5 s after the firing. If the velocity of sound is $ 330m{s^{-1}} $ , how long will it take him to hear the third echo?
Options:
A) 4 s
B) 5 s
C) 6 s
D) 8 s
Show Answer
Answer:
Correct Answer: C