Calculate the energy in corresponding to light of wavelength $45\mathrm{ }\mathrm{n}\mathrm{m}:$ (Planck’s constant $\mathrm{h}=6.63\times {10}^{-34}\mathrm{J}\mathrm{s}:\mathrm{s}\mathrm{p}\mathrm{e}\mathrm{e}\mathrm{d}\mathrm{ }\mathrm{o}\mathrm{f}\mathrm{ }\mathrm{l}\mathrm{i}\mathrm{g}\mathrm{h}\mathrm{t}\mathrm{ }\mathrm{c}=3\times {10}^8 \mathrm{m}{\mathrm{s}}^{-1})$

• A

  $6.67\times {10}^{15}$
• B

  $6.67\times {10}^{11}$
• C

  $4.42\times {10}^{-15}$
• Correct answer
  D

  $4.42\times {10}^{-18}$

Hence, the correct answer is option: 'D'.