A) \[2mk{{r}^{2}}t\]
B) \[mk{{r}^{2}}{{t}^{2}}\]
C) \[m{{k}^{2}}{{r}^{2}}t\]
D) \[m{{k}^{2}}r{{t}^{2}}\]
Correct Answer: A
Solution :
Required time = time taken by stone to reach the water surface + time taken by sound to reach the top \[=\sqrt{\frac{2h}{g}}+\frac{h}{v}\]You need to login to perform this action.
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