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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Wavelength of UVB is :
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The correct answer is  Ans. B. 280-320 nmThe wavelength found most effective in treating skin disease with phototherapy is UVB with warden gfh of 311 (+- 2nm) (narrow band UVB, NBUVB).The wavelengths between 4(N and 7AO nm are visible to the human eye.