A) 651 m
B) 840 m
C) 460 m
D) 188 m
Correct Answer: A
Solution :
Let the hunter is at a distance of x and y meters from two cliffs respectively (y > x). The first echo will be heard when the sound reflects from cliff 1 and 2nd echo when reflects, from cliff 2 and 3rd echo will be heard due to the sound which has been reflected twice, once from cliff 1 and then from cliff 2. Then from the given information \[2x=v{{t}_{0}},\]where \[{{t}_{0}}\]is the time after firing at which the person is hearing the first echo. \[2y=v({{t}_{0}}+1.6)\] \[2x+2y=v({{t}_{0}}+1.6+1.1)\]You need to login to perform this action.
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