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What is meant by angle between reflected ray and incident ray , the angle of deviation or the sum of angles of incidence and reflection ? ( For a plane mirror )
The angle of deviation in a plane mirror reflection is always equal to the angle of incidence. This means that the angle between the incident ray (the incoming ray of light) and the reflected ray (the ray of light bouncing off the mirror) is always the same.
The angle of deviation is measured by drawing a line perpendicular to the surface of the mirror at the point where the incident ray strikes the mirror. Then, the angle between this perpendicular line and the reflected ray is measured using a protractor.
Yes, the angle of incidence does affect the angle of deviation in a plane mirror reflection. As mentioned before, the angle of deviation is always equal to the angle of incidence. This means that if the angle of incidence changes, the angle of deviation will also change.
The incident ray, reflected ray, and angle of deviation are all related by the law of reflection. This law states that the angle of incidence is equal to the angle of reflection, and the incident ray, reflected ray, and normal (a line perpendicular to the surface of the mirror) all lie in the same plane.
No, the angle of deviation cannot be negative in a plane mirror reflection. Since the angle of deviation is always equal to the angle of incidence, it can only have positive values. A negative angle of deviation would imply that the reflected ray is traveling in the opposite direction of the incident ray, which is not possible in a plane mirror reflection.