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Which is optically denser: water or air? Give reason - Physics

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प्रश्न

Which is optically denser: water or air? Give reason

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उत्तर

Denser medium are those in which speed of light gets reduced when light travels through that medium.
when light travels through water or glass it's speed get reduced hence they are optically denser medium.

WATER is optically DENSER as the speed of light is less in water than in air.
2.25 × 108 ms-1   <   3 × 108 ms-1
speed of light in Water < speed of light in Air.

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अध्याय 5: Light Energy - Short/long Answer Question [पृष्ठ ९९]

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सेलिना Concise Physics [English] Class 8 ICSE
अध्याय 5 Light Energy
Short/long Answer Question | Q 3 | पृष्ठ ९९
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