This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Dental
Wood lamp wavelength is 
Select and explain. 
A. 360-385, B. 400-450, C. 280-320, D. 450-500
A: 360-385
Answer: A: 360-385 
Explanation: Woods filter is opaque to all wavelengths it can pass only light between 320-400nm iadvl textbook of dermatology page 109