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प्रश्न
The velocity of light in diamond is 121000 kms-1. What is its refractive index?
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उत्तर
Speed of light in diamond = 121,000 km/s
= 121 × 106 m/s
Refractive index of diamond = `"Speed of light in air"/"speed of light in diamond"`
= `(3xx10^8)/(121xx10^6"m/s")`
= 2.48
संबंधित प्रश्न
A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence. He observes all possible precautions at each step of the experiment. At the end of the experiment, on analyzing the measurements, which of the following conclusions is he likely to draw?
(A) ∠i = ∠e < ∠r
(B) ∠i < ∠e < ∠r
(C) ∠i > ∠e > ∠r
(D) ∠i = ∠e > ∠r
Which colour of light travels fastest in any medium except air?
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