1 Q. 5. (a) Describe an activity along with a labelled
diagram the phenomenon of dispersion through a
prism.
(b) Explain in brief the formation of rainbow with the
help of figure.
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Answer A)
(a) Place a prism on a white sheet of paper with the triangular face on the sheet and trace its boundary ABC.
(ii) Place the prism on the boundary ABC.
(iii) LooKing through the other side fix two more pins Q and R in such a way that the all four pins appear to be in the same line.
Answer B)
It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite
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