The wavelength of maximum intensity of radiation emitted by a star is $289.8 \, nm$. The radiation intensity of the star is (Stefan's constant $\sigma = 5.67 \times 10^{-8} \, W m^{-2} K^{-4}$, Wien's constant $b = 2898 \, \mu m K$).

• A
  $5.67 \times 10^8 \, W/m^2$
• B
  $5.67 \times 10^4 \, W/m^2$
• C
  $2.89 \times 10^8 \, W/m^2$
• D
  $1.13 \times 10^8 \, W/m^2$