light reflection and refraction mcq

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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The refractive index of glass with respect to air is 2. Then the critical angle of glass air interface is a) 0° b) 45⁰ c) 30⁰ d) 60⁰

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A hunter desires of shooting a fish whose image could be seen through clear water. His aim should be a) above the apparent shift b) below the apparent shift c) in the line of sight of fish d) parallel to surface of water.

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A fish looking at 1m highest plant at the edge of a pond. Then its actual height as seen by fish is: a) taller b) shorter c) same d) can't be say

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Mirage is an example of a) Irregular reflection b) Scattering of light c) dispersion of light d) Total internal reflection of light

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When light enters from one medium to another, the condition for no refraction of high a) Light incident normally b) Equal Refractive index of two media c) Light incident with an angle 0° d) Light incident with an angles 45°

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