Out of the following statements which is not correct?

Options

A. (a) When unpolarised light passes through a Nicol's prism, the emergent light is elliptically polarised
B. (b) Nicol's prism works on the principle of double refraction and total internal reflection
C. (c) Nicol's prism can be used to produce and analyse polarised light
D. (d) Calcite and Quartz are both doubly refracting crystals.

Answer

A

Explanation

It magnitude of light vector varies periodically during its rotation, the tip of vector traces an ellipse and light is said to be elliptically polarised. This is not in Nicol prism.