A) \[\frac{1}{15}\]th of a second
B) \[\frac{1}{13}\]th of a second
C) \[\frac{1}{10}\]th of a second
D) \[\frac{1}{5}\]th of a second
Correct Answer: C
Solution :
An echo of the sound produced can be heard only if it reaches our ear after\[\frac{1}{10}\]th of second.You need to login to perform this action.
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