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A beam from a torch goes through a single sheet of… | StemPy Lab

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A beam from a torch goes through a single sheet of Polaroid. How does the brightness of the beam after the sheet compare with its brightness before the sheet?

PhysicsEasyHigh School (11–12)Optics

Created by StemPy Lab

A beam from a torch goes through a single sheet of Polaroid. How does the brightness of the beam after the sheet compare with its brightness before the sheet?

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← Which of these waves cannot be polarised?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? →

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