Question: The minimum change in light intensity that is detectable by the human eye is about 1%. Light is sent through a pair of polarizers whose

The minimum change in light intensity that is detectable by the human eye is about 1%. Light is sent through a pair of polarizers whose axes are at an angle of 45° to each other. By what angle should the second polarizer be turned so that the change in the intensity of the light that exists is barely perceptible?

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