A ray of light parallel to x−axis is incident on a circle (x−2)2+y2=42 polished from inside as shown in the figure. Find the co-ordinate of x and y w.r.t origin of the point at which the incident ray parallel to x−axis should fall such that the reflected ray deviated by 60∘ after reflection.

A ray of light parallel to x−axis is incident on a circle (x−2)2+y

1.	A ray of light parallel to x−axis is incident on a circle (x−2)2+y2=42 polished from inside as shown in the figure. Find the co-ordinate of x and y w.r.t origin of the point at which the incident ray parallel to x−axis should fall such that the reflected ray deviated by 60∘ after reflection.
Answer» A ray of light parallel to $x -$ axis is incident on a circle $(x - 2)^{2} + y^{2} = 4^{2}$ polished from inside as shown in the figure. Find the co-ordinate of $x and y$ w.r.t origin of the point at which the incident ray parallel to $x -$ axis should fall such that the reflected ray deviated by $60^{\circ}$ after reflection.