If the wavelengths corresponding to ultraviolet visible and infrared radiations are given as lUV lVI...........

General Science (CDS) Physics

If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?

lUV < lIR < lVIS

lUV > lVIS > lIR

lUV > lIR > lVIS

lUV < lVIS < lIR

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Explanation:

Infrared radiation, what we experience as heat when we hold our hand near a warm object, is somewhat longer wavelengths than visible light. Visible light is simply electromagnetic radiation in a range of wavelengths that our eyes are sensitive to. Visible wavelengths range from 0.0007 milimeters for red light, through orange, yellow, green, and blue, to 0.0004 milimeters for violet light. Ultraviolet is shorter wavelengths than violet. Longer the wavelength, lower the energy.