A) \[{{33}^{o}}\]
B) \[{{38}^{o}}\]
C) \[{{25}^{o}}\]
D) \[{{43}^{o}}\]
Correct Answer: A
Solution :
: As the ray of light is incident at glass at polarizing angle \[({{i}_{p}})\], so the reflected and refracted rays are perpendicular to each other. If r is the angle of refraction, then \[{{i}_{p}}+r={{90}^{o}}\] \[r={{90}^{o}}-{{i}_{p}}\] Here, \[{{i}_{p}}={{57}^{o}}\] \[\therefore \] \[r={{90}^{o}}-{{57}^{o}}={{33}^{o}}\]
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