Subject :NSO Class : Class 10
Read the passage carefully and answer the following questions. A beam of white light falling on a glass prism gets split into seven colours marked 1 to 7 as shown in figure.
Which of the following statement is correct?
A The colours in the order of increasing wavelength are 1 < 2 < 3 < 4 < 5 < 6 < 7.
B The colours in the order of increasing frequency are 1 < 2 < 3 < 4 < 5 < 6 < 7.
C The colours in the order of decreasing speed are 7 > 6 > 5 > 4 > 3 > 2 > 1.
D The colours in the order of decreasing deviation are 1 > 2 > 3 > 4 > 5 > 6 > 7.
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