Question

Statement-1:
On viewing the deer blue portion of the sky through a Calcite Crystal, the intensity of transmitted light varies as the crystal is rotated.
Statement-2:
The light coming from the sky is polarized due to scattering of sun light by particles in the atmosphere. The scattering is largest for blue light.

• A. Statement-1 is true, statement-2 is true; statement-2 is not correct explanation of statement-1.
• B. Statement -1 is false, statement -2 is true.
• C. Statement-1 is true, statement-2 is false
• D. Statement-1 is true, statement-2 true; statement-2, is the correct explanation of statement-1

Answer 1

The correct option is D Statement-1 is true, statement-2 true; statement-2, is the correct explanation of statement-1

When light from blue portion of sky is passed through a calcite crystal, the emergent light gets polarised and its intensity varies with rotation of polaroid. So the statement-1 is correct..

The light coming from the sky is polarised due to scattering of sun light by particales in the atmosphere. As intensity of scattered light $\propto \frac{1}{{\lambda }_4}$, hence blue colour is most scattered. Hence statement-2 is also correct. And statement-2 is the correct explanation of statement-1