Define refractive index .If the speed of light in air is 3 x 10 8 m/s and the
speed of light in water is 2.2x10 8 m/s. Calculate the refractive index of water.
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Define refractive index .If the speed of light in air is 3 x 10 8 m/s and the
speed of light in water is 2.2x10 8 m/s. Calculate the refractive index of water.
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Answer:
Refractive index = 1.33=4/3
speed of light in air (c)=3×108,
speed of light in water=?
Explanation:
u=c/u
4/3 = 3×108/u
= v=3×3×108/4= 9×108/4
=v=2.25×108m/s.
hence, speed of light in water is 2.25×108m/s.
Answer:
refractive index:- c/v
where c is speed of light in air and v is speed of light in water,
now,
n= c/v
=3* 10^8 / 2.2* 10^8
=1.36
=1.4 (aprox.)