A) \[{{120}^{o}}\]
B) \[{{30}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: C
Solution :
Here, angle of incidence, \[i={{60}^{o}}\] \[\therefore \] Angle of deviation \[\delta ={{180}^{o}}-(i+r)\] \[={{180}^{o}}-2i\] \[(As\,i=r)\] \[={{180}^{o}}-2\times {{60}^{o}}={{60}^{o}}\]You need to login to perform this action.
You will be redirected in
3 sec