In a prism, if the angle of incidence is equal to the angle of emergence, what can be said about the angle of deviation?

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Q: In a prism, if the angle of incidence is equal to the angle of emergence, what can be said about the angle of deviation?

Solution: When the angle of incidence equals the angle of emergence, the angle of deviation is equal to the angle of the prism.

Steps: 6

Step 1: Understand what a prism is. A prism is a transparent optical element that refracts light.
Step 2: Know the terms involved: 'angle of incidence' is the angle at which light hits the prism, and 'angle of emergence' is the angle at which light exits the prism.
Step 3: Recognize that when the angle of incidence equals the angle of emergence, it means the light enters and exits the prism at the same angle.
Step 4: Learn about the 'angle of deviation,' which is the angle between the original path of the light and the path after it exits the prism.
Step 5: Realize that if the angle of incidence equals the angle of emergence, the light does not bend much, and the angle of deviation is minimized.
Step 6: Conclude that in this case, the angle of deviation is equal to the angle of the prism itself.