As white light passes through a prism, it undergoes dispersion. In regard to this phenomenon. Match column I with column II –
Column-I | Column-II |
(i) The colour that travels slowest in the prism | [A] Different for different colours |
(ii) Frequency | [B] Shortest wavelength |
(iii) Angle of deviation | [C] Depends on angle of incidence (i), angle of emergence (e) and angle of prism (A). For minimum deviation i = e. |
(iv) Angle of minimum deviation | [D] undergoes maximum deviation. |
Text Solution
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Ans.
(i) [B], [D]
(ii) [A],
(iii) [A], [C]
(iv) [A], [C]
Sol. (i) Shortest wavelength, undergoes maximum deviation.
(ii) Different for different colours
(iii) Different for different colours, Depends on angle of incidence (i), angle of emergence (e) and angle of prism . For minimum deviation i = e.
(iv) Different for different colours, Depends on angle of incidence (i), angle of emergence (e) and angle of prism . For minimum deviation i = e.
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