A mirror with a flat surface is a plane mirror that reflects light and produces a virtual image without the interference of an inward or outward curve is called a plane mirror.
Solution
As per the figure
Let us assume the two incident angles
∠BAD=x
∠ABD=y
We observe that
⇒∠OBA=90−y
∠OAB=90−x
ΔOAB=>θ+90−y+90−1=180
⇒x+y=θ
Total deviation is 2(90−x)+2(90−y)
=360−2(x+y)
=360−2θ
Answer
The deviation of incident ray =360−2θ
Tags:
Physics