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Question
A monochromatic ray of light is incident on an equilateral prism placed at minimum deviation position with an angle of incidence 45° as shown in the diagram?
- Copy the diagram and complete the path of the ray PQ.
- State two factors on which the angle of deviation depends.
Solution
- Factors on which the angle of deviation depends are:
- Angle of incidence (i).
- Material of the prism (μ).
- Angle of the prism.
- the colour or wavelength (λ) of light used.
- refractive index.
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