A) suffer a deviation of \[19.5{}^\circ \]
B) suffer a deviation of \[39{}^\circ \]
C) not suffer any deviation
D) will be totally internally reflected
Correct Answer: A
Solution :
\[\delta =\left( \mu -1 \right)A\] \[5\propto A\] \[\therefore \,\,\,\frac{{{\delta }_{2}}}{{{\delta }_{1}}}\,\,=\,\,\frac{{{A}_{2}}}{{{A}_{1}}}\] \[\therefore \,\,\,\,\frac{{{\delta }_{2}}}{{{\delta }_{1}}}\,\,=\,\,\frac{A/2}{A}\,\,=\,\,\frac{1}{2}\] \[\therefore \,\,\,\,\,{{\delta }_{2}}\,\,=\,\,\frac{{{\delta }_{1}}}{2}\] \[{{\delta }_{2}}\,\,=\,\,\frac{39}{2}\,\,=\,\,19.5{}^\circ \]
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