In hydrogen atom, an electron is transferred from an orbit of radius 1.3225 nm to another orbit of radius 0.2116 nm. What is the energy (in J ) of emitted radiation?

• A

  $1.635 \times 10^{-18}$
• B

  $3.027 \times 10^{-19}$
• C

  $4.087 \times 10^{-19}$
• Correct answer
  D

  $0.4578 \times 10^{-18}$

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