Question

Refractive index of glass with respect to air is 2. Find the critical angle for glass -air surface​

Answer 1

Answer:

30 degree

Explanation:

• We know, refractive index = 1/sinC , where C = critical angle
• Then,
• $2 = \frac{1}{ \sin(c) }$
• $\sin(c) = \frac{1}{2}$
• $\sin(c) = \sin(30)$
• Hence, c = 30 degree
• I hope it will help you. Thank you dear