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Consider these indices of refraction: glass: 1.52; air: 1.0003; water: 1.333. Based on the refractive indices of three materials, arrange the speed of light through them in decreasing order. 

A. The speed of light in water > the speed of light in air > the speed of light in glass. 

B. The speed of light in glass > the speed of light in water > the speed of light in air. 

C. The speed of light in air > the speed of light in water > the speed of light in glass. 

D. The speed of light in glass > the speed of light in air > the speed of light in water.

2 Answers

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Correct answer is C. The speed of light in air > the speed of light in water > the speed of light in glass.

Higher the refractive index, lesser is the speed of light in that medium and vice versa.

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Correct option is C. The speed of light in air > the speed of light in water > the speed of light in glass.

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