Question 3

A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in Figure 11.1. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky? (a)

This question refers to a figure in the original PDF.

• (i)(b)
• (ii)(c)
• (iii)(d)
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