Wavelength of long ultraviolet radiation is which range?

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Multiple Choice

Wavelength of long ultraviolet radiation is which range?

Explanation:
The wavelength range for the longer end of ultraviolet light falls at higher wavelengths within the UV band, which is about 290 to 400 nanometers. This part of the spectrum corresponds to UV-A and UV-B, the softer, longer-wavelength end of ultraviolet radiation. The other ranges lie outside UV: infrared/near-infrared spans roughly 700–1500 nm, UV-C (shorter UV) is around 180–290 nm, and ranges like 0.1–3 mm are far into infrared and microwave territory. So 290–400 nm is the correct description for the long ultraviolet.

The wavelength range for the longer end of ultraviolet light falls at higher wavelengths within the UV band, which is about 290 to 400 nanometers. This part of the spectrum corresponds to UV-A and UV-B, the softer, longer-wavelength end of ultraviolet radiation. The other ranges lie outside UV: infrared/near-infrared spans roughly 700–1500 nm, UV-C (shorter UV) is around 180–290 nm, and ranges like 0.1–3 mm are far into infrared and microwave territory. So 290–400 nm is the correct description for the long ultraviolet.

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