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प्रश्न
The speed of light in glass is 2 × 105 km/s. What is the refractive index of glass?
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उत्तर
Given:
Speed of light in glass = 2 x 105 km/s = 2 x 108 m/s
Refractive index of glass is
`mu_"glass" = (3 xx 10^8)/(2xx10^8) = 1.5`
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संबंधित प्रश्न
Draw a ray diagram to show the refraction of light through a glass slab and mark angle of refraction and the lateral shift suffered by the ray of light while passing through the slab.
A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence (∠i). He then measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be
(A) ∠i > ∠r > ∠e
(B) ∠i = ∠e > ∠r
(C) ∠i < ∠r < ∠e
(D) ∠i = ∠e < ∠r
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