Question

A light ray strikes a plane mirror at an angle of 23° to the normal. What is the angle between the reflected ray and the mirror?

Answer 1

Answer:
`67^(\circ)`

Step-by-step explanation:

Given

Ray of light incident on plane making an angle of
`23^(\circ)` with normal

Thus incident angle
`i=23^(\circ)`

So according to the law of incidence is equal to angle of reflection

`\angle i=\angle r`

thus
`\angle r=23^(\circ)`

and angle between mirror and reflected ray
`=90^(\circ)-23^(\circ)`

`=67^(\circ)`