Wavelength range for long ultraviolet radiation is which of the following?

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Prepare for the REMBE Electrotherapy Test. Study with flashcards and multiple choice questions. Each question comes with hints and explanations. Master electrotherapy concepts and get ready for your exam!

Multiple Choice

Wavelength range for long ultraviolet radiation is which of the following?

Explanation:
Long ultraviolet refers to the longer-wavelength portion of the ultraviolet band, closest to visible light. Ultraviolet light sits just beyond the violet end of the visible spectrum, roughly below 400 nanometers. The longer end of UV spans about 290 to 400 nanometers, which is why this range is described as long ultraviolet. The other options correspond to ranges in the infrared or even longer wavelengths (millimeter waves) when expressed in micrometers or millimeters, not ultraviolet radiation. Therefore, the 290–400 nanometer range best matches long ultraviolet.

Long ultraviolet refers to the longer-wavelength portion of the ultraviolet band, closest to visible light. Ultraviolet light sits just beyond the violet end of the visible spectrum, roughly below 400 nanometers. The longer end of UV spans about 290 to 400 nanometers, which is why this range is described as long ultraviolet. The other options correspond to ranges in the infrared or even longer wavelengths (millimeter waves) when expressed in micrometers or millimeters, not ultraviolet radiation. Therefore, the 290–400 nanometer range best matches long ultraviolet.

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