Question

a ray of light has an equation x + y =1. If the angles between the incident ray and normal and the reflected ray and normal are equal, then find the equation of the reflected ray.

Answer 1

y=-x+1
then -1 is the slop
angle is tan inverse of -1 which is 135
hence the angle between the indecent ray and the normal is 45 degree
hence the angle between the reflected ray and the normal is also 45 degree
now try solving

Answer 2

Is the answer -x+y = 1??

Answer 3

@jimsk

Answer 4

yes u can check it by drawing the graph