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Q77. You can change the direction of polarization of light from vertical to horizontal. Behind the...

Q77. You can change the direction of polarization of light from vertical to horizontal. Behind the first filter, place a second at 45-degree orientation (clockwise) relative to the first, and a third at another 45-degree orientation to the second (also clockwise). By how much is the intensity reduced using these two filters? What happens if the middle filter is removed?

(Question about The Nature of Light)

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