Angle of the middle polaroid between two crossed polaroids from the emerging intensity (3/32 of the incident)

1. A.
   $\dfrac{1}{2}\sin^{-1}\left(\dfrac{\sqrt{3}}{2}\right)$
2. B.
   $\dfrac{1}{2}\cos^{-1}\left(\dfrac{\sqrt{3}}{2}\right)$
3. C.
   $\dfrac{1}{2}\sin^{-1}\left(\dfrac{1}{\sqrt{3}}\right)$
4. D.
   $\dfrac{1}{2}\cos^{-1}\left(\dfrac{1}{\sqrt{3}}\right)$

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1. A.
   $\dfrac{1}{2}\sin^{-1}\dfrac{\sqrt{3}}{2}$ and $45^\circ$
2. B.
   $\sin^{-1}\dfrac{\sqrt{3}}{2}$ and $90^\circ$
3. C.
   $\dfrac{1}{2}\cos^{-1}\dfrac{\sqrt{3}}{2}$ and $45^\circ$
4. D.
   $\cos^{-1}\dfrac{\sqrt{3}}{2}$ and $90^\circ$

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