If the a refractive index of w=1.33.Find the
(i)w refractive index of a
(ii)the critical angle
(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.