JEE MAIN - Physics (2019 - 9th January Evening Slot - No. 12)

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M₁) and parallel to the second mirror (M₂) is finally reflected from the second mirror (M₂) parallel to the first mirror (M₁). The angle between the two mirrors will be :

45^o

60^o

75^o

90^o

Explanation

Let the angle between two mirrors are $$\theta $$.

We know sum of angles of triangle = 180^o

$$ \therefore $$ 3$$\theta $$ = 180^o

$$ \Rightarrow $$ $$\theta $$ = 60^o

JEE MAIN - Physics (2019 - 9th January Evening Slot - No. 12)

Explanation

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