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Question
In the formation of spectrum of white light by a prism:
which colour is deviated least?
Solution
In the formation of a spectrum of white light by a prism
red colour is deviated the least
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RELATED QUESTIONS
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
What do you understand by the term spectrum?
Complete the ray diagram given below to show the nature of light produced on the screen.
In the following diagram, the correctly marked angles are
(A) All
(B) Only ∠i and ∠A
(C) ∠i, ∠r and ∠A
(D) ∠i, ∠A and ∠D
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
Write an Explanation.
Critical angle
What is a rainbow?
