A beam of natural light falls on a system of 5 polaroids, which are arranged in succession such that the pass axis of each polaroid is turned through with respect to the preceding one. The fraction of the incident light intensity that passes through the system is |
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A beam of natural light falls on a system of 5 polaroids, which are arranged in succession such that the pass axis of each polaroid is turned through with respect to the preceding one. The fraction of the incident light intensity that passes through the system is |
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b) |
c) |
d) |
(d) Let be the intensity of incident light Then the intensity of light from the polaroid is Intensity of light from the 2nd polaroid is Intensity of light from the 3rd polaroid is Intensity of light from the 4th polaroid is Intensity of light from the 5th polaroid is Therefore, the fraction of the incident light that passes through the system is |