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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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Refractive index | Material medium | Refractive index |
| Air | 1.0003 | Canada Balsam | 1.53 |
| Ice | 1.31 | – | – |
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