Asked by poppy👌🤔
the wavelength of ultraviolet radiation is 400nm. if the speed of light in air is exactly 3*10^8m/s, then the frequency of the ultraviolet radiation is?
a). 1.3*10^-13hz
b). 7.5*10^5hz
c) . 1.2*10^11hz
d) . 7.5*70^14hz?
a). 1.3*10^-13hz
b). 7.5*10^5hz
c) . 1.2*10^11hz
d) . 7.5*70^14hz?
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