Question

for which particular situation snells law is valid​

Answer 1

Answer:

Snell's law is especially used in optical devices such as optical fibre. It is used to make prism .prism allow us to study light in detail. In binoculars, telescopes lenses are used,these lenses are transparent material that refracts light and converge at a single point.

Answer 2

Answer:

for finding refractive index

Explanation:

according to snell's law sine of angle of incidence by sine of angle of refractent is equal to a constant...

this constant is refractive index...

hope this may help you....