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प्रश्न
Air is optically .......... than glass.
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उत्तर
Air is optically rarer than glass.
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संबंधित प्रश्न
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Match the Following
| Column A | Column B |
| (a) white Light | (1) Convex mirror |
| (b) Refraction | (2) Concave mirror |
| (c) Virtual images | (3) refraction |
| (d) Real images | (4) spectrum |
| (e) Prism | (5) ray of light from glass to air |
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