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A ray of light passes from air into water (refractive index 1.33). The ray will bend:
AToward the normal because water is optically denser
BAway from the normal because water is optically denser
CToward the normal because water is optically rarer
DAlong the same direction without bending
Answer & Solution
Correct answer: A. Toward the normal because water is optically denser
When light passes from a rarer medium (air, n ≈ 1.0) into a denser medium (water, n = 1.33), it slows down and bends TOWARD the normal.
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