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What is Wave length of UV A2 rays is and explain in detail?
Ultraviolet light * Ultraviolet light (UV) is made up of: # Vacuum UVC (10-200 nm) # UVC (200-280 nm) # UVB (280-320 nm) # UVA (320-400 nm) divided into UVAII (320-340 nm) and UVAI (340-400 nm). Ref:- Review of Dermatology by Alikhan; pg num:-13