alleryWhen light passes from a less dense medium (air) into a denser medium (glass), it:
ABends away from the normal
BBends towards the normal
CGoes straight without bending
DReflects back completely
Answer & Solution
Correct answer: B. Bends towards the normal
1. Light slows down on entering a denser medium.
2. By Snell's law n₁ sinθ₁ = n₂ sinθ₂, with n₂ > n₁ ⇒ θ₂ < θ₁.
3. So the refracted ray bends TOWARDS the normal.
4. From denser to rarer (e.g., glass to air), it bends AWAY.
_Source: syllabus Science Ch 9 §9.3 Refraction of Light_
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