A particular star appears fainter seen through a blue filter than seen through a yellow filter. Which of these surface temperatures is possible for this star?
A) 12,500 K
B) 38,000 K
C) 8800 K
D) 3800 K

Question

Quizplus · Accepted Answer

Stars with cooler surface temperatures, like 3800 K, emit more light in the red and yellow parts of the spectrum and less in the blue, making them appear fainter through a blue filter compared to a yellow filter.

A Particular Star Appears Fainter Seen Through a Blue Filter