# A particle is projected with velocity 2√gℎ so that it just clears two walls of equal height ℎ, which are at a distance of 2ℎ from each other. What is the time interval of passing between the two walls?

Question: A particle is projected with velocity 2√gℎ so that it just clears two walls of equal height ℎ, which are at a distance of 2ℎ from each other. What is the time interval of passing between the two walls?

(A) $\dfrac{2h}{g}$

(B) $\sqrt{\dfrac{2h}{g}}$

(C) $\sqrt{\dfrac{h}{g}}$

(D) $2\sqrt{\dfrac{h}{g}}$