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The angle between the incident ray and the ray reflected from a plane mirror is 60°. Through what angle is the reflected ray deviated with respect to the incident ray?

The angle between the incident ray and the ray reflected from a plane mirror is 60°. Through what angle is the reflected ray deviated with respect to the incident ray? Correct Answer 60<sup style="">°</sup>

The correct answer is 60°.

  • The angle between the incident ray and the ray reflected from a plane mirror is 60° then the reflected ray deviates with an Eagle of 60o.

Key Points

  • Reflection of Light:
    • The return of light into the same medium after striking a surface is called reflection.
    • There are two laws of reflection:
      • The angle of incidence is always equal to the angle of reflection.
      • The incident ray, normal at the point of incidence and reflected ray, all lie in the same plane. 

Additional Information

  • Reflection From Plane Mirror:
    • The image is virtual and laterally inverted.
    • The size of the image is equal to that of the object.
    • The distance of the image from the mirror is equal to the distance of the object from the mirror.
    • If an object moves towards (or away from) a plane mirror with speed u, relative to the object, the image moves towards (or away) with a speed of 2u.
    • If a plane mirror is rotated by an angle θ, keeping the incident ray fixed, the reflected ray is rotated by an angle 2θ.
    • To see his full image in a plane mirror, a person requires a mirror of at least half of his height. 

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