Refractive index of water with respect to glass
Asked by admin @ in Physics viewed by 298 People
find refractive index of water with respect to glass if the speed of light in water and glass is 2.25×10^8 m/s and 2×10^8 m/s respectively
Asked by admin @ in Physics viewed by 298 People
find refractive index of water with respect to glass if the speed of light in water and glass is 2.25×10^8 m/s and 2×10^8 m/s respectively
Answered by admin @
The refractive index of medium 2 with respect to medium 1 is equal to the ratio of speed of light in medium 1 to the speed of light in medium 2.
(➠ Refractive index is generally denoted by R.I. or n )
( where ₁n₂ is refractive index of medium 2 with respect to medium 1 ; v₁ is the speed of light in medium 1 and v₂ is the speed of light in medium 2 )
Using the formula
Refractive index of water with respect to glass will be
Hence, refractive index of water with respect to glass is 0.89 (approximately).
● Refractive index of a medium with respect to air ( or vacuum) is considered to be it's absolute refractive index.
● The refractive index for light going from medium 1 to medium 2 is equal to the reciprocal of the refractive index for light going from medium 2 to medium 1.
● Refractive index of medium 1 with respect to medium 2 can also be given as the ratio of absolute refractive index of medium 1 to the absolute refractive index of medium 2.
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