Unpolarised light is passed through a polaroid P1. When this polarised beam passes through another polaroid P2 and if the pass axis of P2 makes angle θ with the pass axis of P1, then write the expression for the polarised beam passing through P2. Draw a plot showing the variation of intensity when θ varies from 0 to 2π.

Unpolarised light is passed through a polaroid P1. When this polarised

1.	Unpolarised light is passed through a polaroid P1. When this polarised beam passes through another polaroid P2 and if the pass axis of P2 makes angle θ with the pass axis of P1, then write the expression for the polarised beam passing through P2. Draw a plot showing the variation of intensity when θ varies from 0 to 2π.
Answer» Unpolarised light is passed through a polaroid $P_{1}$ . When this polarised beam passes through another polaroid $P_{2}$ and if the pass axis of $P_{2}$ makes angle $θ$ with the pass axis of $P_{1}$ , then write the expression for the polarised beam passing through $P_{2}$ . Draw a plot showing the variation of intensity when $θ$ varies from 0 to $2 π$ .

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