Question 174: Ray Optics

Question

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M
1
) and parallel to the second mirror (M
2
) is finally reflected from the second mirror (M
2
) parallel to the first mirror (M
1
). The angle between the two mirrors will be :

Accepted Answer

Let the angle between two mirrors are $$	heta $$.
We know sum of angles of triangle = 180
o
$$ 	herefore $$  3$$	heta $$ = 180
o
$$ \Rightarrow $$  $$	heta $$  = 60
o

Answer

45
o

Answer

60
o

Answer

75
o

Answer

90
o

Ray Optics

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M 1 ) and parallel to the second mirror (M 2 ) is finally reflected from the second mirror (M 2 ) parallel to the first mirror (M 1 ). The angle between the two mirrors will be :

Choose the correct answer: