1.

If light of intensity lo is incident at an angle 45^(@) with optical axis of polaroid, so intensity of emerging light is......

Answer»

`I_(0)`
`0.5I_(0)`
`0.25I_(0)`
zero

Solution :From MALUS LAW, the intensity of emerging LIGHT is,
`I=I_(0)cos^(2) theta`
`=I_(0) cos^(2)45^(@)`
`=I_(0)xx(1)/(2)=0.5I_(0)`


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