Question

State snell's Law of refraction of light write an expression to relate reactive Index of a medium with speed of light in vacuum the refractive index of A medium a with respect to medium b is 2 by 3 and the refractive index of medium B with respect to medium C is 4 by 3 find reactive index of medium C with respect to medium a​

Answer 1

Answer-   Snell` s law- The ratio of sin of angle of incidence to that of the refraction is always constant . This constant value is known as refractive index.

naB=2/3 .........eq. 1  and nBC= 4/3..........eq.2

  now let , from these equation

a:B=3:2 and B:C=3:4,

or a:B=9:6 and B:C=6:8

therefore, a:B:C=9:6:8

or, medium a : medium C = 9:8

thus the n Ca = 9/8