question_answer

The balls are released from the top of a tower of height H at regular interval of time. When first ball reaches at the ground, the nth ball is to be just released and \[{{\left( \frac{\text{n+1}}{\text{2}} \right)}^{\text{th}}}\]ball is at same distance 'h' from top of the tower. The value of h is.

A) \[\frac{2}{3}\,\,H\]        

B) \[\frac{3}{4}H\]

C) \[\frac{4}{5}H\]            

D) \[\frac{5\,H}{6}\]