PYQ - Snell's law — task. Physics CBSE Live product, Class 10 (2026-27).

Determine the value of the refractive index.

Ray diagram

1. With the help of the given ray diagram, calculate the refractive index of Medium \(2\) with respect to Medium \(1\)
(Given that \(\sqrt{3}\ =\ 1·732\))

\(n\ =\ \frac{sin\ n}{sin\ r}\)
\(n\ =\ \frac{sin\ i}{sin\ n}\)
\(n\ =\ \frac{sin\ r}{sin\ i}\)
\(n\ =\ \frac{sin\ i}{sin\ r}\)

n = \frac{\sin i^{0}}{\sin i^{0}}

The value of the refractive index is

2. Which of the following correctly describes the conclusion drawn from the calculated refractive index?

the refractive index only indicates the brightness of the medium
Medium \(2\) has a lower optical density and higher speed of light than Medium \(1\)
both media have identical optical properties
Medium \(2\) has a greater optical density and lower speed of light than Medium \(1\)

[Note: Enter the answer upto three decimal places.]

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3. PYQ - Snell's law

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