There are two categories of ultraviolet light ultraviolet a


There are two categories of ultraviolet light. Ultraviolet A ( UVA ) has a wavelength ranging from 320nm to 400nm . It is not so harmful to the skin and is necessary for the production of vitamin D. UVB, with a wavelength between 280nm and 320nm , is much more dangerous, because it causes skin cancer

Part A What are the ranges of the wave numbers for UVA?

kmin, kmax=____________rad/m

Part B What are the ranges of the wave numbers for UVB?

kmin,kmax=______________rad/m

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Physics: There are two categories of ultraviolet light ultraviolet a
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