The Radiation Emitted by the Sun Is Brightest at a Wavelength

Multiple Choice

The radiation emitted by the sun is brightest at a wavelength of about 5000 Å (1 Å is 10^-10 m) .At what wavelength would the Sun be brightest if its temperature were doubled?

A) 2500 Å
B) 5000 Å
C) 10,000 Å
D) 20,000 Å