Question

draw a ray of light to show a ray of light can be turned through 100 degrees using two plane mirrors. mark on your diagram a value for the angle of incidence at each mirror

Answer 1

The diagram is presented below:

All we need is two plane mirrors, one is at the angle of 65° toward the direction of propagation of the incident ray, and the other is at 25° below the direction of propagation of the incident ray of light.