A pair of crossed polarizers, with axes at 0=0° and 90°, is placed in a beam of unpolari zed light with irradiancelo, so that light emerges from the first with and from th e second with ¹2=0. A third polarizer is placed between the two at angle = 45° . What is the value of ¹2? If the third polarizer rotates at angular frequency w show that (1-cos4wt).
A pair of crossed polarizers, with axes at 0=0° and 90°, is placed in a beam of unpolari zed light with irradiancelo, so that light emerges from the first with and from th e second with ¹2=0. A third polarizer is placed between the two at angle = 45° . What is the value of ¹2? If the third polarizer rotates at angular frequency w show that (1-cos4wt).
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Transcribed Image Text:A pair of crossed polarizers, with axes at 0=0° and 90°, is placed in a beam of unpolari
and from th
zed light with irradiance¹o, so that light emerges from the first with
e second with ¹2=0. A third polarizer is placed between the two at angle = 45° . What
is the value of ¹2?
If the third polarizer rotates at angular frequency w show that
Io
16
(1-cos4wt).
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