The energy of one mole of photons of radiation of wavelength \( 300 \) \( \text{nm} \) is (Given : \( h = 6.63 \times 10^{-34} \) \( \text{J s} \), \( N_{A} = 6.02 \times 10^{23} \) \( \text{mol}^{-1} \), \( c = 3 \times 10^{8} \) \( \text{m s}^{-1} \) )
