Physics · 2022
JEE Main · 25 June 2022, Shift 2 · Q31
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Two identical balls A and B thrown…
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Two identical balls $\displaystyle A$ and $\displaystyle B$ thrown with same velocity ' $\displaystyle u$ ' at two different angles with horizontal attained the same range $\displaystyle R$. If $\displaystyle A$ and $\displaystyle B$ reached the maximum height $\displaystyle h_1$ and $\displaystyle h_2$ respectively , then $\displaystyle R=4 \sqrt{h_1 h_2}$Reason R: Product of said heights.
$$h_1 h_2=\left(\frac{u^2 \sin ^2 \theta}{2 g}\right) \cdot\left(\frac{u^2 \cos ^2 \theta}{2 g}\right)
$$Choose the correct answer :
Official answer
(1)
Both $\displaystyle \mathbf{A}$ and $\displaystyle \mathbf{R}$ are true and $\displaystyle \mathbf{R}$ is the correct explanation of $\displaystyle \mathbf{A}$.
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.