General Science • PhysicsMedium
When a ray of light passes obliquely from a denser medium to a rarer medium, how does it bend with respect to the normal?
A. It bends towards the normal
B. It bends away from the normal✓ Correct Answer
C. It passes straight without any deviation
D. It reflects back entirely into the denser medium
💡 Solution & Explanation
According to Snell's law of refraction, when light travels from an optically denser medium to a rarer medium, its speed increases, causing the refracted ray to bend away from the normal line perpendicular to the interface. When traveling from rarer to denser, it bends towards the normal. Total internal reflection occurs only when the angle of incidence exceeds the critical angle.
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