Question

Write the necessary conditions for the thenomenon
total internal reflection to occur
Write the relation between the refractive index and cica
angle for a given pair of media​

Answer 1

Answer:

(a) Necessary conditions for total internal reflection to occur are:

(i) The incident ray on the interface should travel in optically denser medium.

(iii) The angle of incidence should be greater than the critical angle for the given pair of optical media.

(b)μ=

sinC

1

∘μ0=1sinC

Where a and b are the rarer and denser media respectively. C is the critical angle for the angle for the given pair of optical media