The wavelength of maximum intensity of radiation emitted by a star is 289.8 nm . The radiation intensity for the star is :
a) 5.67 x 10⁸Wm⁻²
b) 5.67 x 10¹²Wm⁻²
c) 10.67 x 10⁷Wm⁻²
d) 10.67 x 10¹⁴ Wm⁻²