1.

The polaroids `P_(1), P_(2) & P_(3)` are arranged coaxially. The angle between `P_(1)` and `P_(2)` is `37^(@)`. The angle between `P_(2)` and `P_(3)` is, if intensity of emerging light is a quarter of intensity of unploarized lightA. `theta = cos^(-1) ((5)/(4))`B. `theta = cos^(-1) ((4)/(5))`C. `theta = cos^(-1) ((4)/(5sqrt(2)))`D. `theta = cos^(-1)((5)/(4sqrt(2)))`

Answer» Correct Answer - D
`I^(1) = (I)/(2), cos^(2) theta_(1) cos^(2)theta_(2)`


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