Question
Question: Two plane mirror which are perpendicular are forming two sides of a vessel filled with liquid of ref...
Two plane mirror which are perpendicular are forming two sides of a vessel filled with liquid of refractive index = 1.5. After all possible refraction & reflection, find the deviation (d) in ray-
A
d = 00
B
d = 1800
C
d = 900
D
We can't find out deviation as other two angles in figure is not given.
Answer
d = 1800
Explanation
Solution
q2 + q3 + 1350 = 1800
q3 = 450 – q2
q3+ q4 = 900
45 – q2 + q4 = 90ŗ
q4 = 45 + q2
900 – q4 + q5 + 1350 = 1800
45ŗ – q2 + q5 + 135ŗ = 180ŗ
q5 = q2
q6 = q1 (By Snell law)
\ d = 180ŗ