Question

If the refractive index of diamond is 2.42 Find it's critical angle​

Answer 1

Critical angle is 24.4°

Step-by-step explanation:

`n \sin(c) = 1`

n is refractive index

c is critical angle

`{ \sf{2.42 * \sin(c) = 1}} \\ { \sf{ \sin(c) = (1)/(2.42) }} \\ \\ { \sf{ \sin(c) = 0.4132}} \\ { \sf{c = \sin {}^( - 1) (0.4132) }} \\ { \sf{c = 24.4 \degree}}`