What is the wavelength of UV rays used in Woods lamp?: (A) 360 nM, (B) 460 nM, (C) 660 nM, (D) 760 nM
Answer is A. Ans. A. 360nMA Wood's lamp generates 360-nm ultraviolet (or "black") light produced by a mercury vapor source passed through a nickel oxide filter that can be used to aid the evaluation of certain skin disorders.