Under what conditions is the phenomenon of total internal reflection between the critical angle of incidence and the refractive index of the medium.

State the relation between the critical angle and the absolute refractive index of a medium.

For total internal reflection to take place, the angle of incidence i and the refractive index mu of the medium must satisfy the inequality

How is the critical angle related to the refractive index of a medium ?

(a) Under what conditions is the phenomenon of total internal reflection of light observed? Obtain the relation between the critical angle of incidence and the refractive index of the medium. (b) Three lenses of focal lengths +10cm,-10cm and +30cm are arranged coaxially as in the figure given below. Find the position of the final image formed by the combination. (b) (i) Write a balanced equation showing nuclear fission of Uranium (""_(92)^(235)U) nucleus. (ii) In a nuclear reactor, what is the function of : (a) Cadmium rods? (b) Graphite rods?

The critical angle for diamond (refractive index = 2) is

Conditions Of Total Internal Reflection

In total internal reflection when the angle of incidence is equal to the critical angle for the pair of medium in contact, what will be angle of refraction? In total internal reflection when the angle of incidence is equal to the critical angle for the pair of medium in contact, what will be angle of refraction? In total internal reflection when the angle of incidence is equal to the critical angle for the pair of medium in contact, what will be angle of refraction?

For a given incident ray as shown in Fig., the condition of total internal reflection of ray will be satisfied if the refractive index of the block will be. .

A ray of light falls normally on one face of a right angled prims of refracting angle A. It suffers two total internal reflections before coming out of prism parallel to incident ray as shown. Refractive index to prism material will be:

Assertion Shining of diamond is due to the phenomenon of total internal reflection. Reason Refractive index of diamond is large. Hence,critical angle is small.