Wavelength of UVB rays is ?
Correct Answer: 290 - 320 nm
Description: Ans. is 'a' i.e., 290 - 320 nm UV rays are used directly to treat skin conditions. It is simply referred to as phototherapy. These may be :? UVB phototherapy (290-320 nm) Narrow band UVB phototherapy (311 nm) UVA1 phototherapy (360-380 nm)
Category:
Skin
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