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प्रश्न
Refractive indices of carbon disulphide and ethyl alcohol are 1.63 and 1.36 respectively. Which is optically denser?
उत्तर
Carbon disulphide is optically denser than ethyl alcohol. It is because a substance with high refractive index is optically denser than the other with low refractive index.
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संबंधित प्रश्न
The refractive index of diamond is 2.42. What is the meaning of this statement in relation to the speed of light?
How is the refractive index of a material related to the speed of light in it?
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Light travels through air at 300 million ms−1. On entering water it slows down to 225 million ms−1. Calculate the refractive index of water.
The speed of light in substance X is 1.25 × 108 m/s and that in air is 3 × 108 m/s. The refractive index of this substance will be:
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(b) substance Q
(c) substance R
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| Medium | Refractive index |
| A | 1.33 |
| B | 1.44 |
| C | 1.52 |
| D | 1.65 |
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Name a liquid whose mass density is less than that of water but it is optically denser than water.
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