Question

In a binary system, the apparent magnitude of the primary star is 1.0 and that of the secondary star is 2.0. The maximum combined magnitude of this system is:

a. 1.0
b. 2.0
c. 2.5
d. 3.0

Answer 1

In a binary system, the maximum combined magnitude is the sum of the individual magnitudes of the stars. Therefore, the correct answer is d. 3.0.

Step-by-step explanation:

The apparent magnitude of a star is a measure of its brightness as seen from Earth. In a binary system, the maximum combined magnitude of the system is determined by adding the individual magnitudes of the stars. So, in this case, the maximum combined magnitude would be 1.0 + 2.0 = 3.0. Therefore, the correct answer is d. 3.0.

Magnitude refers to the size, extent, or numerical value of a quantity. It's a term used to describe the scale or measurement of various physical quantities, vectors, or forces.

Key points about magnitude:

Measurement Scale: Magnitude refers to the quantitative size or amount of a specific attribute, property, or quantity. It can represent the extent, size, intensity, or strength of something.

Scalars vs. Vectors: In the context of vectors, magnitude specifically refers to the size or absolute value of the vector, regardless of its direction.