NEET Physics Ray Optics and Optical Instruments Questions Solved


Draw a ray diagram to show two refraction of light through a glass prism. Explain with help of a diagram the dependence of angle of deviation on the angle of incidence. Hence obtain the relation for the angle of minimum deviation in terms of angle of prism and refractive index of prism.

Labelled diagram                              1 mark

Diagram of δ versus e                      1 mark

Derivation δm=μ-1 A                    3 mark

Difficulty Level:

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