A star of magnitude 1 appears _______________ times brighter than a star of magnitude 2.
A) 5.21
B) 3.14
C) 10
D) 2.51

Name: A star of magnitude 1 appears _______________ times brighter than a star of magnitude 2. A) 5.21 B) 3.14 C) 10 D) 2.51
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Question

Quizplus · Accepted Answer

The magnitude scale is logarithmic, with a difference of 5 magnitudes corresponding to a brightness factor of 100. Therefore, a difference of 1 magnitude corresponds to a brightness factor of the 5th root of 100, which is approximately 2.51.

A Star of Magnitude 1 Appears _______________ Times Brighter Than