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candy cakes dear kalke pathabo pakka amni te o ami ludhiana a thaki ami jani na ki jekhane tumi poro shekhaner kemon studies ok sorry if i hurt u dear​

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Answer:

(a) When light travels from a rarer to a denser medium, its speed decreases

(b) When light travels from a denser to a rarer medium, its speed increases

(c) The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be 2/3

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