You are sitting by the shore of a lake on a sunny and windless day. when are your polaroid sunglasses most effective in reducing the glare of the sunlight reflected from the lake surface? when the angle of incidence of the sunlight on the lake is

0° to 90°.

Explanation:

The angle of incidence of the sunlight on the lake will be in between 0° to 90°.

As we know that when the light comes from the sun it is unpolarized but after when sunlight reflected from the sea, the lake then it gets polarized.

The chances of internal reflection get increases if the angle of incidence is more.

Answer is 0° to 90°.

it would be c. predictability