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Applications of Dot Product

Find the maxi...

Question

Find the maximum angle that can be made in glass medium from glass to vacuum.

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Solution

$\begin{matrix} 1.5 sin C = 1 sin 90^{0} w h e r e C i s c r i t i c a l a n g l e sin C = \frac{2}{3} C = {sin}^{- 1} \frac{2}{3} \end{matrix}$

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