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A ray of light travelling inside a rectangular glass block of refractive index 2 is incident on the glass air surface at an angle of incidence of 45°. The refractive index of air is 1. The ray will
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- Emerge into air without any deviation
- Be reflected back in to glass
- Be absorbed
- Emerged in to air with an angle of refraction equal to 90°
Correct Option: D
N/A
