Direction: Read the passage carefully and answer the following question. A beam of white light falling on a glass prism gets split into seven colours marked 1 to 7 as shown in figure. |
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.
Correct Answer: B
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