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प्रश्न
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
(b) air nY
(c) x nY
उत्तर
(a) air nx = (Speed of light in air) / (Speed of light in medium X)
= (3 × 108) / (2 × 108)
= 1.5
(b) air n Y = (Speed of light in air) / (Speed of light in medium Y)
= (3 × 108) / (2.5 × 108)
= 1.2
(c) x nY = (Speed of light in medium X) / (Speed of light in medium Y)
= (2 × 108) / (2.5 × 108)
= 0.8
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संबंधित प्रश्न
The absolute refractive indices of two media 'A' and 'B' are 2.0 and 1.5 respectively. If the speed of light in medium 'B' is 2 × 108 m/s, calculate the speed of light in:
(i) vacuum,
(ii) medium 'A'.
The speed of light in air is:
(a) 3 × 108 cm/s
(b) 3 × 108 mm/s
(c) 3 × 108 km/s
(d) 3 × 108 m/s
How is the refractive index of a material related to the speed of light in it?
The refractive index of water is:
(a) 1.33
(b) 1.50
(c) 2.42
(d) 1.36
State Snell’s law of refraction of light. Write an expression to relate refractive index of a medium with speed of light in vacuum.
The refractive index of a medium ‘a’ with respect to medium ‘b’ is 2/3 and the refractive index of medium ‘b’ with respect to medium ‘c’ is 4/3. Find the refractive index of medium ‘c’ with respect to medium ‘a’.
If in a medium, the speed of light is 1.5 × 108 m/s how much will the absolute refractive index of that medium be?
Solve the example.
If the absolute refractive indices of glass and water are 3/2 and 4/3 respectively, what is the refractive index of glass with respect to water?
If the refractive index of air with respect to glass is 2/3. What is the refractive index of glass with respect to air?
Define the refractive index of a medium.
Refractive index of diamond with respect to glass is 1.6 and absolute refractive index of glass is 1.5. Find out the absolute refractive index of diamond.
