Stars a and B Have the Same Radius, but the Spectrum

question 61

Multiple Choice

Stars A and B have the same radius, but the spectrum of star A peaks at a wavelength of 500 nm, whereas star B's spectrum peaks at 1000 nm. What is the ratio of the Kelvin temperature of the surface of star A to the Kelvin temperature of the surface of star B?

• A) 1/4
• B) 1/2
• C) 2
• D) 4