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KEAM 2011 Physics and Chemistry Paper

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Question : 15

Total: 120

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 60° with respect to the preceding one. The fraction of the incident light intensity that passes through the system is

1
64
1
32
1
256
1
128
1
512

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