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Science · 2024 · 1 mark
CBSE 2024 · Region 4 · Set 1 · Q11
Absolute refractive index of glass and water is 3/2 and 4/3 respectively. If the speed of light in glass is 2 × 10^8 m / s, the speed of light in…
Absolute refractive index of glass and water is $\displaystyle \frac{3}{2}$ and $\displaystyle \frac{4}{3}$ respectively. If the speed of light in glass is $\displaystyle 2 \times 10^{8} \mathrm{~m} / \mathrm{s}$, the speed of light in water is :
Official answer
(A)
$\displaystyle \frac{9}{4} \times 10^{8} \mathrm{~m} / \mathrm{s}$
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CBSE Class 10 Science past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.