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Question
Sunlight entering through a narrow aperture falls on a prism. Draw a neat labelled ray diagram to show the formation of the spectrum on a screen. Name the colour obtained nearer the base of the prism.
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Solution
The labelled ray diagram showing the formation of the spectrum of sunlight on a screen is given below. The colour obtained nearer the base of the prism is violet.
RELATED QUESTIONS
What is spectrum? What is the name of glass shape used to produce a spectrum?
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
The property of splitting of white light into its seven constituent colours is known as
What conclusion do you draw about the nature of white light in part (b)?
What do you understand by the term spectrum?
While performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. 
(A) I
(B) II
(C) III
(D) IV
If white light is used in same way what change is expected in the emergent beam?
State the colour which bends:
- The most.
- The least while passing through a glass prism.
