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Question

Green light has a wavelength of

A
400 – 450 nm
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B
500 − 580 nm
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C
660 – 720 nm
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D
720 − 800 nm
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Solution

The correct option is B 500 − 580 nm
The visible spectrum wavelength is ususally between 400 to 700 nm.
Violet light has a wavelength of 400 – 450 nm.
Where as Green light has a wavelength of 500 – 580 nm.
Red light has a wavelength of 660 – 720 nm.
Wavelengths longer than 720 nm are part of the Infra-red spectrum.

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