A ray incident on a glass prism undergoes minimum deviation when the
Question 1 Report
A ray incident on a glass prism undergoes minimum deviation when the
Answer Details
When a ray of light passes through a glass prism, it bends or refracts. The amount of bending depends on the angle at which the light enters the prism. The angle of deviation is the angle between the incident ray and the emergent ray, measured from the direction of the incident ray.
For a given prism and wavelength of light, there is a specific angle of incidence that produces the minimum angle of deviation. This angle of incidence is the angle at which the incident ray passes through the prism symmetrically, meaning it enters and exits the prism at the same angle.
Therefore, the statement that is true is "the incident angle is equal to the angle of emergence". This is because when the angle of incidence equals the angle of emergence, the angle of deviation is minimized, resulting in the minimum amount of bending of the light.
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