CBSE 2024 · Region 2 · Set 1 · Q10 · 1 mark
An alpha particle approaches a gold nucleus in Geiger-Marsden experiment with kinetic energy K. It momentarily stops at a distance d from the nucleus and reverses its direction. Then d is proportional to :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \frac{1}{\mathrm{~K}}$
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.