A particular star appears approximately equally bright when viewed through a blue filter and through a yellow filter.What is the approximate surface temperature of this star? (See Figure 10-4,Comins,Discovering the Essential Universe,6th ed.)
A) 6000 K
B) 12,000 K
C) 3000 K
D) It is not possible for a star to be equally bright at two different wavelengths.

Question

Quizplus · Accepted Answer

The star's surface temperature is approximately 6000 K, as this temperature corresponds to a peak in the star's spectrum that would make it appear equally bright through both blue and yellow filters.

A Particular Star Appears Approximately Equally Bright When Viewed Through