Question

A narrow beam PQ of white light is passing through a glass prism ABC as shown in the diagram.
Study the diagram and answer the following questions,
(a) Name the phenomenon observed in above set-up?
(b) In nature, this phenomenon is observed in
(i) Formation of rainbow
(ii) Twinkling of stars
(iii)Blue colour of sky
(iv) Advance sunrise
(c) Which of the following statement is correct about
constituents of white light based on above observations?
(i) White light consists of seven colours.
(ii) Violet colour suffers minimum deviation.
(iii)Red light suffers maximum deviation.
(iv) All the colours of the white light move with different speed.
(d) Trace the figure on your answer sheet and show the path of emergent beam as observed on the
screen DE.
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Answer 1

(a) Dispersion splitting of white light in the components of colour using Prism.

(B) option ii

(C) option i

(d) It is in the ncert textbook in human eye chapter class 10.

or I have drwan for you.