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Define the term 'linearly polarised ligh...

Define the term 'linearly polarised light'.
When does the intensity of transmitted light become maximum, when a polaroid sheet is rotated between two crossed polaroids ?

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Linearly polarised light : The light in which the vibrations of the light are restricted in a particular plane is called plane or linearly polarised light.
According to law of Malus,
`I=I_(0) cos^(2) theta`
The intensity of light transmitted from the ananlyser will be maxium when `theta=0^(@)` i.e. when polariser and analyser are parallel.
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