Question 183: Ray Optics

Question

A ray of laser of a wavelength 630 nm is incident at an angle of 30$$^\circ$$ at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option.

Accepted Answer

$$\sin {	heta _C} = {1 \over \mu } = {1 \over {2{\mu _2}}}  sin$$	heta$$
C
$$	heta$$ > $$	heta$$
C
Total internal reflection will happen.

Answer

angle of refraction is 24.41$$^\circ$$

Answer

angle of refraction is 30$$^\circ$$

Answer

refraction is not possible

Answer

angle of refraction is 53.4$$^\circ$$

Ray Optics

A ray of laser of a wavelength 630 nm is incident at an angle of 30$^\circ$ at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option.

Choose the correct answer: