A particular star is brighter seen through a blue filter than through a yellow filter. Which of the following surface temperatures is possible for this star? (See Figure 17-9.(in the text))

Question

Quizplus · Accepted Answer

According to Figure 17-9 in the text, a star with a surface temperature of 15,000 K has a higher intensity in the blue part of the spectrum compared to the yellow part. Therefore, it is possible for this star to appear brighter through a blue filter than through a yellow filter. The other temperature choices (3000 K, 4500 K, and 6000 K) all show a greater intensity in the yellow part of the spectrum compared to the blue, so it is not possible for the star to appear brighter through a blue filter for those temperatures.

A Particular Star Is Brighter Seen Through a Blue Filter