A) 225 m/s
B) 340 m/s
C) 510 m/s
D) 1020 m/s
Correct Answer: B
Solution :
Key Idea: Time taken by echo to reach the person is directly proportional to distance. Let distance of person from hill A be x metre, then from hill B is \[\mu F\]. \[\mu F\] \[{{m}^{3}}\] Time taken for the echo to travel 170 m is given ,by \[{{m}^{3}}\] \[{{m}^{3}}\] \[{{m}^{3}}\]You need to login to perform this action.
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