Question

speed of light in air is 3 ×10*8m/s.if the refrective index of glass is 1.5 find the speed of light in glass​

Answer 1

Answer:

Speed of light in glass = 2 × 10*8 m/s

Explanation:

Speed of light in air = 3×10*8 m/s

Refractive Index = 1.5

Let the speed of light in glass be 'x'

Formula: _______________________________________

Refractive Index = Speed of light in air

Speed of light in medium

______________________________________.

1.5 = 3 × 10*8 m/s

x

x = 3× 10*8 m/s

1.5

x = 2 × 10*8 m/s

The speed of light in glass = 2 × 10*8 m/s

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