A ray of light generated from the source kept at (-3,4) and strikes the line 2x + y = 7 at R. an...

Wavefront generated from a line source is

A ray of light is sent from the point (-2020, -2019) along the line y = x +1. Upon reaching the line 2x + y -1= 0, the ray is reflected from it, then the equation of reflected ray is.

A ray of light travels from a light source S to an observer after reflection from a plane mirror. If the source rotates in the clockwise direction by 10^@ , by what angle and is what direction must the mirror be rotated so that the light ray still strikes the observer?

A ray of light is sent along the line x-6y = 8 After refracting across the line x + y = 1 it enters the opposite side after turning by 15^(@) away from the line x+ y =1 .Find the equation of the line along which the refracted ray travels .

A ray of light is sent along the line x-2y+5 = 0 upon reaching the line 3x- 2y + 7 = 0 the ray is reflected from it . Find the equation of the containing the reflected ray .

A mirror and source of light are situated at the origin O and a point on OX respectively. A ray of light from the source strikes the mirror and is reflected. If the DRs of the normal to the plane of mirror are 1,-1,1, then DCs for the reflacted ray are :

A man starts from the point P(-3,4) and will reach the point Q(0,1) touching the line 2x+y=7 at R. The coordinates R on the line so that he will travel in the shortest distance is