alleryIn the visible spectrum, red light lies at the:
ALong wavelength end
BLoud wavelength end
CLow wavelength end
DLeft wavelength end
Answer & Solution
Correct answer: A. Long wavelength end
1. Colour is associated with frequency or wavelength.
2. Red light is at the long wavelength end, around 700 nm.
3. Violet is at the short wavelength end.
_Source: syllabus Physics Part II, Ch 9 'Ray Optics and Optical Instruments'_
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