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}}

Answer: option (D)

Solution:

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