一, Waa maxay lenska UV lenska UV, oo sidoo kale loo yaqaan lenska ultraviolet, waa muraayad indhaha si gaar ah loogu talagalay in lagu gudbiyo oo diiradda saaro iftiinka ultraviolet (UV). Iftiinka UV, oo leh mowjadaha dhererkoodu hoos ugu dhaco inta u dhaxaysa 10 nm ilaa 400 nm, waa ka baxsan yahay xadka iftiinka muuqda ee spectrum electromagnetic. Muraayadaha UV waa...
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