1.

Define angle of deviation. Why do different components of white light split up into spectrum when it passes through a triangular glass prism? Show the angle of deviation for red colour when white light passes through a prism.

Answer»

SOLUTION :The angle between the EXTENDED incident ray and the emergent ray is called the angle of deviation.
This is because the DIFFERENT colours travel through a glass prism at different speeds.
For DIAGRAM.


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