A plane polarized light is incident normally on a tourmaline plate. Its vecE vectors make an angle of 60^(@) with the optic axis of the plate. Find the percentage difference between initial and final intensities.

A plane polarized light is incident normally on a tourmaline plate. It

1.	A plane polarized light is incident normally on a tourmaline plate. Its vecE vectors make an angle of 60^(@) with the optic axis of the plate. Find the percentage difference between initial and final intensities.
Answer» 0.25 0.75 0.5 0.9 Solution :`I=I_(0)COS^(2) THETA` `=I_(0)cos^(2) 60^(@)` `I=(I_(0))/(4)` `(I_(0)-I)/(I_(0))xx100%=(I_(0)-(I_(0))/(4))/(I_(0))xx100%` `=(3I_(0))/(4I_(0))xx100=75%`

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A plane polarized light is incident normally on a tourmaline plate. Its vecE vectors make an angle of 60^(@) with the optic axis of the plate. Find the percentage difference between initial and final intensities.

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