light enters from air to glass having refractive index 1.5.what is the speed of light in the glass.
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6
Refractive index of glass = Speed of light in air / speed of light in glass.
So, 1.5 = 3 x 108 / speed of light in glass
= 2 x 108 m s-1
Thus , the speed of light in glass is 2 x 108 m s-1.
So, 1.5 = 3 x 108 / speed of light in glass
= 2 x 108 m s-1
Thus , the speed of light in glass is 2 x 108 m s-1.
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4
refractive index = speed of light in air / speed of light in glass
speed of light in air = 3×10^8
speed of light in glass = 3×10^8/1.5
=2×10^8
speed of light in air = 3×10^8
speed of light in glass = 3×10^8/1.5
=2×10^8
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