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# The critical angle for light travelling from a transparent medium to air s measu...

### Question

The critical angle for light travelling from a transparent medium to air s measured as 340. The refractive index of the medium is

A) 0.56

B) 1.50

C) 1.79

D) 2.02

### Explanation:

N = $$\frac{1}{sinθ}$$
= $$\frac{1}{sin34}$$
= 1.79

## Dicussion (1)

• N = $$\frac{1}{sinθ}$$
= $$\frac{1}{sin34}$$
= 1.79