SSC CGL 2025, Physics, refraction - Questions and Answers

Browse the questions, answers and explanations for refraction in Physics, SSC CGL 2025.

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SSC CGL 2025 Physics Optics

1.

When a ray of light travels from a denser medium to a rarer medium, it bends:

Snell's Law:

$n_1 \sin\theta_1 = n_2 \sin\theta_2$

A

Towards the normal

B

Away from the normal

C

Along the normal

D

No bending occurs

View Answer

Correct Answer: B — Away from the normal

Explanation:

When light travels from denser to rarer medium, the refracted ray bends away from the normal because speed increases. This follows Snell's law: $n_1 \sin\theta_1 = n_2 \sin\theta_2$ .