A Polaroid is placed at to incoming unpolarised light of intensity

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

A Polaroid is placed at

45^\circ

to incoming unpolarised light of intensity

I_0

. The intensity of light passing through the Polaroid after polarisation is (a)

I_0

(b)

\frac{I_0}{2}

(c)

\frac{I_0}{4}

(d) Zero