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प्रश्न
Light enters from air into diamond which has a refractive index of 2.42. Calculate the speed of light in diamond. The speed of light in air is 3.0 × 108 ms−1.
उत्तर
We know:
Refractive index = Speed of light in air/Speed of light in diamond
Let X be the speed of light in diamond. Now, we have:
2.42 = 3.0 × 108 ms-1 / X
X = 1.24 × 108 ms-1
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संबंधित प्रश्न
Fill in the following blank with a suitable word:
When a ray of light goes from air into a clear material, you see the ray bend. How much the ray bends is determined by the ............... of the material.
Give three examples of materials that refract light rays. What happens to the speed of light rays when they enter these materials?
The speed of light in air is 3 × 108 m/s. In medium X its speed is 2 × 108 m/s and in medium Y the speed of light is 2.5 × 108 m/s Calculate:
(a) air nx
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(a) `1/3`
(b) `4/5`
(c) `4/6`
(d) `5/2`
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n = _______. This law is also called as Snell’s law.
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