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In above question what is the depth of ...

In above question what is the depth of object corresponding to incidne rays striking on surface `CD` in medium `mu_(2)`

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Depth of the object corresponding to incident ray striking `CD` in medium `mu_)(2) = i_(2) + Pl_(1)`

`= t_(2) + (t_(1))/(mu_(1)//mu_(2))`
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