A girl stand 80m away from a tall cliff and blows a whistle. If the speed of sound in air is 330ms-1, how long would it take for her to hear the echo of the sound?
a
2.062s
b
0.970s
c
0.485s
d
0.242s
Explanation
Correct Option
cVideo Explanation
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chrisbintus
10 years ago
I like be among scholars nd I will be glad to be oriented more of this subject for my forth coming exams tnx


