The medical profession divides the ultraviolet region of the electromagnetic spectrum into three bands: UVA (320 nm420

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The medical profession divides the ultraviolet region of the electromagnetic spectrum into three bands: UVA (320 nm–420 nm), UVB (290 nm–320 nm), and UVC (100 nm–290 nm). UVA and UVB promote skin cancer and premature skin aging; UVB also causes sunburn, but helpfully fosters production of vitamin D. Ozone in Earth’s atmosphere blocks most of the more dangerous UVC. Find the frequency range associated with UVB radiation.

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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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