If the wavelengths corresponding to ultraviolet, visible and infrared

If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as λ_UV, λ_VIS and λ_IR respectively, then which one of the following gives the correct relationship among these wavelengths?

”λ<sub>UV</sub>

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Answer is Wrong!

This question was previously asked in

UPSC CDS-1 – 2019

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The correct option is D.

The electromagnetic spectrum arranges different types of radiation by wavelength and frequency. Wavelength increases from gamma rays to radio waves. The order of the given radiations by increasing wavelength is: Ultraviolet (UV), Visible, Infrared (IR). Therefore, the correct relationship is λ_UV < λ_VIS < λ_IR.

The approximate wavelength ranges are: UV (10 nm to 400 nm), Visible (400 nm to 700 nm), and IR (700 nm to 1 mm). This confirms the order of wavelengths.

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