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Question
Select the most appropriate word from the given box and fill in the following blanks.
| normal 48.6° ray red refractive index vacuum 41° refraction 2.3 |
The speed of light is maximum in ______.
Fill in the Blanks
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Solution
The speed of light is maximum in vacuum.
Explanation:
Light travels fastest in a vacuum (free space) with an absolute speed of approximately $3 \times 10^8\text{ m/s}$. In all other transparent material media, the speed of light is less than this value.
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Chapter 2: Light - Graded Assignment 2.1 [Page 116]
