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

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Q: (CDS-I/2019)
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as IUV, IVIS and HR respectively, then which of the following gives the correct relationship among these wavelengths?

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,7,13,6,6,1,7

keywords: 

{'wavelengths': [0, 0, 1, 2], 'infrared radiations': [0, 0, 0, 3], 'correct relationship': [0, 0, 0, 2], 'iuv': [0, 0, 0, 1], 'ivis': [0, 0, 0, 1], 'hr': [0, 1, 2, 1]}

The correct relationship among the wavelengths corresponding to ultraviolet, visible, and infrared radiations is given by option 4: IUV < IVIS < HR.

Ultraviolet (UV) radiation has shorter wavelengths and higher frequencies than visible light. This means that UV radiation has higher energy. Therefore, IUV is the smallest wavelength compared to the other two.

Visible light, as the name suggests, is the range of wavelengths that are visible to the human eye. It falls between UV and infrared (IR) radiation. IVIS is greater than IUV but smaller than HR.

Infrared radiation has longer wavelengths and lower frequencies than visible light. It is not visible to the human eye but can be detected as heat. HR is the largest wavelength among the three.

It is important to note that the correct order of the relationship is not based on the numerical values of the wavelengths, but on their relative positions in the electromagnetic spectrum. Therefore, option 4 correctly represents the relationship among the wavelengths.