What is the surface temperature of a star, given that its radiation peak occurs at a frequency of 1.06 × 10¹⁵ Hz? A) 17,000 K B) 14,500 K C) 19,000 K D) 20,400 K E) 18,000 K

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Quizplus · Accepted Answer

Wien's displacement law states that the wavelength of the peak of blackbody radiation is inversely proportional to the temperature of the blackbody. The frequency of the peak is directly proportional to the temperature. So, a higher frequency corresponds to a higher temperature. The given frequency is 1.06 × 10^15 Hz, which corresponds to a temperature of 18,000 K.

What Is the Surface Temperature of a Star, Given That