Question

speed of light in air is 3 into 10 ^ 8 m/s and their reflective index of a medium 1.5 find the speed of light in the medium​


it is very very urgent please anyone answer me

Answer 1

Answer:

η=Speed of light in (vacuum/air)Speed of light in medium1.5=3×108Speed of light in mediumSpeed of light in medium=3×1081.5=2×108ms−1. Hence the speed of light in glass is 2×108ms−1. In the above diagram we can see that the refracted angle for angle of incidence or the critical angle is 90 degrees.

Explanation:

Answer 2

Answer:

2×10^8 m/s

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