What is the wavelength (in nm) associated with a photon of energy 1.0 x 10-17 J?

According to plank the energy of photon is E=hy

we need to convert frequency to wavelength
we know, h=6.626×10^-34 J/s



What is the wavelength (in nm) associated with a photon of energy 1.0 x 10-17 J?






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