light mcq class 10

Total internal reflections takes place when a light ray propagates from …….. to ……….. medium. a) rarer to denser b) denser to rarer c) rarer to rarer d) denser to denser

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At critical angle of incidence, the angle of refraction is …….. a) 45° b) 90° c) 0° d) 30°

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The angle of deviation produced by the glass slab is ………… a) 0⁰ b) 20⁰ c) 90° d) depends on the angle formed by the light ray and the normal to the slab.

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Total internal reflection takes place when the light ray travels from ……. a) rarer to denser medium b) rarer to rarer medium c) denser to rarer medium d) denser to denser medium

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