Question

refraction index of glass is 1.65 what is the speed of light in glass

Answer 1

Answer:

hii here is your answer In this picture

Answer 2

Answer:

Explanation:

Given Refractive index = n = 1.65

speed of light in vaccum = 3 × 108 m s-1

Using,Refractive Index= speed of light in vaccum/ speed of light in glass

1.65 = 3 × 108 ms-1 / speed of light in glass

speed of light in glass = 3 × 108 /1.65

= 1.8 × 108 m s-1

Therefore speed of light in glass is 1.8 × 108 ms-1

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