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(a) Using the phenomenon of polarizatio...

(a) Using the phenomenon of polarization, show, how, transverse nature of light can be demonstrated.
(b) Two polaroids `P_(1) and P_(2)` are placed with their pass axes perpendicular to each other. Unpolarised light of intensity 10 is incident on P1. A third polaroid P3 is kept in between `P_(1) and P_(2)` such that its pass axis makes an angle of `30^(@)` with that of `P_(1)`. Determine the intensity transmitted through `P_(1),P_(2) and P_(3)`.

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