Q7: Four polarizers are placed on an optical bench between an unpolarised light source and a photocell. The polarizing axes of the polarizes w.r.t. the vertical are 30° , 60° , 45° and -30° . If the incident intensity on the first polarizer is 100 a.u., what is the intensity recorded by the photo cell.
Q7: Four polarizers are placed on an optical bench between an unpolarised light source and a photocell. The polarizing axes of the polarizes w.r.t. the vertical are 30° , 60° , 45° and -30° . If the incident intensity on the first polarizer is 100 a.u., what is the intensity recorded by the photo cell.
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Transcribed Image Text:Q7: Four polarizers are placed on an optical bench between an unpolarised
light source and a photocell. The polarizing axes of the polarizes w.r.t. the
vertical are 30° , 60° , 45° and -30° . If the incident intensity on the first
polarizer is 100 a.u., what is the intensity recorded by the photo cell.
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