JEE Main 2022 · 29 Jul · Shift 2 · Physics Q43

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PhysicsSingle correct+4 / -1Question 43 of 90

A ball is released from a height h. If $t_1$ and $t_2$ be the time required to complete first half and second half of the distance respectively. Then, choose the correct relation between $t_1$ and $t_2$ .

t_1=(\sqrt2)t_2

t_1=(\sqrt2-1)t_2

t_2=(\sqrt2+1)t_1

t_2=(\sqrt2-1)t_1

Answer and worked solution

Official answer: D

Times. $t_1=\sqrt{h/g}$ and the whole fall takes $\sqrt{2h/g}=\sqrt2\,t_1$ , so $t_2=(\sqrt2-1)t_1$ .

(D)

Topics:Motion in a straight line

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JEE Main 2022 · 29 Jul · Shift 2, Physics question 43