The Surface of the Sun Is at a Temperature of Approximately

Multiple Choice

The surface of the Sun is at a temperature of approximately 5800 K, and radiates a peak wavelength of 500 nm.According to the Planck radiation law, what is its emitted intensity per unit wavelength at the peak?

A) 8.4 W/cm²∙nm
B) 42 W/cm²∙nm
C) 84 W/cm²∙nm
D) 8.4 x 10³ W/cm²∙nm
E) 4.2 x 10⁷ W/cm²∙nm