A) \[{{63}^{o}}\]
B) \[{{42}^{o}}\]
C) \[{{28}^{o}}\]
D) \[{{21}^{o}}\]
Correct Answer: D
Solution :
Angle of minimum deviation \[{{\delta }_{\min }}=(\mu -1)A\] \[=\left( \frac{3}{2}-1 \right){{42}^{o}}\] \[=\frac{1}{2}\times 42\] \[={{21}^{o}}\]You need to login to perform this action.
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