Optical Path Length Refraction (Jee Mains) | ExamDuo
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Reflection and Refraction
Medium
Optical Path Length Refraction
A ray of light AO in vacuum is incident on a glass slab at angle 60° and refracted at angle 30° along OB as shown in the figure.The optical path length of light ray from A to B is:
SELECT ONE OPTION
A
2
a
+
2
b
B
2
√
3
a
+
2
b
C
2
a
+
2
b
3
D
2
a
+
2
b
√
3
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