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Questions  >>  CBSE XII  >>  Physics  >>  Wave optics
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Q)

In a Fresnel bi prism experiment, the two position of lens, give separation between the slits as $16\;cm$ and $9\;cm$ respectively . What is the actual distance of separation?

$\begin{array}{1 1} 10\;cm \\ 4\;cm \\ 3\;cm \\ 12 \;cm \end{array} $

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