A beam of light is passed through a polaroid and the latter is rotated with the beam of light as axis. The intensity of the emergent light varies between a maximum and a minimum.Then the light used is :

A beam of light is passed through a polaroid and the latter is rotated

1.	A beam of light is passed through a polaroid and the latter is rotated with the beam of light as axis. The intensity of the emergent light varies between a maximum and a minimum.Then the light used is :
Answer» a mixture of elliptically polarised and UNPOLARISED LIGHT only elliptically polarised light only Either (a) or (B) NEITHER (a) nor (b) Solution :`because sin theta_(E) = cot theta_(p)` ` =(1)/(tan theta_(p))` = `(1)/(tan 60)` `therefore sin theta_(c) = (1)/(sqrt3)`

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A beam of light is passed through a polaroid and the latter is rotated with the beam of light as axis. The intensity of the emergent light varies between a maximum and a minimum.Then the light used is :

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