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Science · 2023 · 3 marks
CBSE 2023 · Region 4 · Set 3 · Q33
(A) Define the term dispersion of white light. State the colour which bends (i) the most, (ii) the least while passing through a glass prism. Draw a…
(A)
Define the term dispersion of white light. State the colour which bends (i) the most, (ii) the least while passing through a glass prism. Draw a diagram to show the dispersion of white light.
OR
(B)
What is a rainbow? Draw a labelled diagram to show its formation.
Marking-scheme solution
The splitting up of white light into its constituent/seven different colours while passing through a glass prism is called dispersion of white light.
(i) Violet bends the most
(ii) Red bends the least
A rainbow is a natural spectrum of sunlight appearing in the sky after the rainfall.
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CBSE Class 10 Science past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.