A violet-hot star emits radiation having about twice the peak frequency of radiation from a red-hot star. The surface temperature of the hotter star is about

Question

Quizplus · Accepted Answer

According to Wien's Law, the peak frequency of radiation emitted by a blackbody is directly proportional to its temperature. As the violet-hot star emits radiation with twice the peak frequency of the red-hot star, its temperature must be twice as much as the red-hot star. Therefore, the surface temperature of the hotter star is twice that of the cooler star, which is option B.

A Violet-Hot Star Emits Radiation Having About Twice the Peak