If the a refractive index of w=1.33.Find the

Question

(i)w refractive index of a
(ii)the critical angle

Answer 1

(i) To find the refractive index of a from w=1.33, we can use the formula:

n = 1/w

Substitute w=1.33 into the formula:

n = 1/1.33
n ≈ 0.7519

Therefore, the refractive index of a is approximately 0.7519.

(ii) The critical angle can be calculated using the formula:

θc = sin^(-1)(1/w)

Substitute w=1.33 into the formula:

θc = sin^(-1)(1/1.33)
θc = sin^(-1)(0.7519)
θc ≈ 49.58 degrees

Therefore, the critical angle is approximately 49.58 degrees.