Consider the electromagnetic radiations having wavelengths 200 nm, 500

Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength(s) of the following can make visual sensation to a human eye?

[amp_mcq option1=”200 nm and 500 nm” option2=”500 nm and 1000 nm” option3=”500 nm only” option4=”200 nm and 1000 nm” correct=”option3″]

This question was previously asked in

UPSC CDS-1 – 2017

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The human eye can make a visual sensation when exposed to electromagnetic radiation within a specific range of wavelengths, known as the visible spectrum. This range is typically considered to be from about 400 nanometers (nm) to 700 nm.

– Wavelengths outside the visible spectrum (like 200 nm which is ultraviolet, and 1000 nm which is infrared) do not cause a visual sensation in humans.
– Out of the given wavelengths, only 500 nm falls within the visible spectrum (approximately 400-700 nm), corresponding to green light.

The visible spectrum is a small part of the entire electromagnetic spectrum. Different wavelengths within the visible spectrum are perceived as different colors by the human eye, ranging from violet (around 400 nm) to red (around 700 nm).

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