State the law of refraction of light that defines the refractive index of a medium with
respect to the other. Express it mathematically. How is the refractive index of any
medium 'A' with respect to a medium 'B' related to the speed of propagation of light
in two media A and B? State the name of this constant when one medium is vacuum
or air.
The refractive indices of glass and water with respect to vacuum
are 3/2 and 4/3 respectively. If the speed of light in glass is 2X 10 8 m/s, find the
speed of light in (i) vacuum, (ii) water.
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Answer:
these laws are known as snell's law
Explanation:
1. all the incident ray the point of incidence, as well as the normal and refracted ray all lie on the same point .
2. sine i / sine r = constant
hope this helps you bey