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If a ray of light is incident on a plane mirror at an angle 60° from the mirror surface, then deviation produced by mirror is
  • a)
    30°
  • b)
    60°
  • c)
    90°
  • d)
    120°
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If a ray of light is incident on a plane mirror at an angle 60° fr...
The angle of incidence is the angle between the incident ray and the normal to the mirror at the point of incidence. In this case, the angle of incidence is 60 degrees.

The angle of reflection is the angle between the reflected ray and the normal to the mirror at the point of incidence. According to the law of reflection, this angle is equal to the angle of incidence. Therefore, the angle of reflection in this case is also 60 degrees.

The normal to the mirror is a line perpendicular to the surface of the mirror at the point of incidence. If the incident ray is coming from the left side of the mirror and making an angle of 60 degrees with the normal, then the reflected ray will be on the right side of the mirror and also make an angle of 60 degrees with the normal.

The incident ray, the reflected ray, and the normal all lie in the same plane, which is the plane of the mirror. This is also true for any other incident ray that makes an angle of 60 degrees with the normal at the point of incidence.

The image of an object formed by a plane mirror is virtual, upright, and the same size as the object. The image is located behind the mirror and is at the same distance from the mirror as the object is in front of the mirror. In this case, the image will be located at a distance of 2 times the distance of the object from the mirror.
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Community Answer
If a ray of light is incident on a plane mirror at an angle 60° fr...
If u come across such type of questions just do (180-angle given)
Here,(180-60)= 120
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If a ray of light is incident on a plane mirror at an angle 60° from the mirror surface, then deviation produced by mirror isa)30°b)60°c)90°d)120°Correct answer is option 'D'. Can you explain this answer?
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