5
Question Question 5(ii)
(a) How many surfaces bound a prism?
(b) Give the relationship between wavelength of light and amount by which it deviates when it is passed through a prism.
(c) What will be the colour of the emergent light ray when a ray of white light is incident on a thin walled hollow glass prism?
(a) A prism is a transparent medium bounded by five plane surfaces i.e., 2 triangular faces and three rectangular lateral surfaces.
(b) Wavelength (λ) ∝
(c) The emergent light will be white because the outer surface of the prism behave like a hollow glass plate.