For a ray, incident at an angle of ${45}^{\circ }$ on a plane mirror the deviation produced in its path will be

Q. For a ray of light incident at an angle ${55}^o$ on a plane mirror the deviation produced in its path will be

Q. A ray of light is incident on a plane mirror at an angle ${50}^{\circ }$. The deviation produced by the plane mirror will be

Q. A ray of light is incident on a plane mirror at an angle of ${60}^o$ .The angle of deviation produced by the mirror is