A body is projected veritclaly upwards.The times corresponding to height h while ascending and while descending are `t_(1)` and `t_(2)` respectively.
Then, the velocity of projection will be (take g as acceleration due to gravity)
A. `gsqrt(t_(1)t_(2))/(2)`
B. `g(t_(1)+t_(2))/(2)`
C. `gsqrt(t_(1)t_(2))`
D. g`(t_(1)t_(2))/((t_(1)+t_(2))`