Question

Speed of light in glass is 2X108m/s and its refractive index is 1.5. What is the speed of light in medium whose refractive index is 4/3.

Answer 1

4/3=3×10^8÷v

v= 9×10^8÷4

= 2.25×10^8

HENCE THE SPEED OF LIGHT IN THE MEDIUM HAVING THE GIVEN R.I. IS 2.25×10^8 ...

Answer 2

Answer:

The speed of light in medium is 2×144m/s.

Step-by-step explanation:

Let the speed of light in glass be V

And, Refractive Index be RI

Hence, Speed of light in medium = V × RI

= 2×108×4/3

= 288(answer).

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