A source of light is placed in front of a screen. Intensity of light on the screen is I. Two Polaroids P₁ and P₂ are so placed in between the source of light and screen that the intensity of light on screen is 1/2. P₂ should be rotated by an angle of ............. (degrees) so that the intensity of light on the screen 31 8 becomes
A source of light is placed in front of a screen. Intensity of light on the screen is I. Two Polaroids P₁ and P₂ are so placed in between the source of light and screen that the intensity of light on screen is 1/2. P₂ should be rotated by an angle of ............. (degrees) so that the intensity of light on the screen 31 8 becomes
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Transcribed Image Text:A source of light is placed in front of a screen.
Intensity of light on the screen is I. Two Polaroids
P₁ and P₂ are so placed in between the source of
light and screen that the intensity of light on screen
is 1/2. P₂ should be rotated by an angle of .............
(degrees) so that the intensity of light on the screen
31
8
becomes
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