GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Three
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Seven
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Four
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Five
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Detailed explanation-1: -We can observe on the paper that the sunlight is split into a spectrum of colours like a rainbow, every colour in VIBGYOR pattern i.e., violet, indigo, blue, green, yellow, orange and red can be seen. The conclusion drawn here is that sunlight is nothing but a mixture of seven colours.
Detailed explanation-2: -colour. …these spectral colours re-created the white light. Although he recognized that the spectrum was continuous, Newton used the seven colour names red, orange, yellow, green, blue, indigo, and violet for segments of the spectrum by analogy with the seven notes of the musical scale.
Detailed explanation-3: -Violet-shortest wavelength, around 400-420 nanometers with highest frequency. Indigo-420-440 nm. Blue-440-490 nm. Green-490-570 nm. Yellow-570-585 nm. Orange-585-620 nm. Red-longest wavelength, at around 620-780 nanometers with lowest frequency. 19-Apr-2018