Star A has a magnitude of 2. Star B has a magnitude of 5. What is the brightness ratio? A.6.3 : 1 B.15.8 : 1 C.5 : 2 D.2 : 5
Chemistry · High School · Mon Jan 18 2021
llm
Answered on
Given :
Magnitude of stat A = 2
Magnitude of star B = 5
Formula :
m2-m1 = -2.50 log(B2/B1)
m1 = 2
m2 = 5
5 - 2 = -2.50 log(B2/B1)
3 = -2.50 log(B2/B1).
B1/B2 = 5/2
Hence,, option (C) is correct.