State two properties of ultra-violet radiations which differ from visible light.
(i) Ultra-violet radiations are of wavelength shorter than that of visible light.
(ii) Ultra-violet radiations are more chemically active than the visible light.
State two properties of ultra-violet radiations which differ from visible light.
State two properties of ultra-violet radiations which differ from visible light.
(i) Ultra-violet radiations are of wavelength shorter than that of visible light.
(ii) Ultra-violet radiations are more chemically active than the visible light.