Created by StemPy LabWhich statement is true at Brewster's angle?
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← A laser gives a beam that is already plane polarised, with an intensity of 64 W/m². A Polaroid sheet is turned until its pass direction lies 40° from the direction of vibration of the beam. How much intensity gets through the sheet?A cabinet maker tests a new clear plastic of refractive index 1.47 with a lamp in air. At what angle of incidence will the glare reflected from the plastic be completely plane polarised? →
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