speed of light in glass is 2×10^8 . Find the refractive index of glass .
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Answer:
Explanation:
Refractive index of glass is 1.5 . r
refractive index of glass with respect to air is equal to speed of light in air divided by speed of light in glass.
Thus, refractive index_glass with respect to air =
speed of light in air / speed of light in glass
Thus,
= 3×10^8 / 2×10^8
= 3 /2 ( since we can cancel 10^8 by 10^8)
= 1.5 = refractive index of glass
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