Question

a stone is dropped into a well in which the level of water is h below the top of the if v is velocity of sound, find the time t after which the splash is heard?​

Answer 1

Answer:

Time taken for thw ball to reach the bottom

= (2h/g)^1/2

Time taken by sound to reach the top

= h/v

Thus total time = (2h/g)^1/2 + h/v

Thus answer is B