Star A and star B both have an absolute magnitude of 2.0, but star A has an apparent magnitude of 5.0 and star B has an apparent magnitude of 7.0. Which statement below is correct?

A) Star A appears brighter than star B, but actually star B and star A are the same brightness.
B) Star B appears brighter than star A, but actually star B and star A are the same brightness.
C) Star A and star B appear to have the same brightness, but actually star B is brighter than star A.
D) Star A and star B appear to have the same brightness, but actually star A is brighter than star B.
E) It is impossible to determine how bright these stars are or appear to be relative to one another, given the information above.


A

Physics & Space Science

You might also like to view...

A pint of water (on Earth) is approximately

a. 1 pound. b. 1 gram. c. 1 kilogram. d. 1 quart.

Physics & Space Science

Conversion of Units: A spherical fruit has a radius of 3.23 cm. What is the volume of the fruit in cubic meters?

A. 1.41 × 10-4 m3 B. 1.41 m3 C. 4.23 × 10-4 m3 D. 4.23 m3

Physics & Space Science

Series/Parallel Circuits: Three resistors with resistances of 2.0 ?, 6.0 ?, and 12 ? are connected across an ideal dc voltage source V, as shown in the figure. If the total current in the circuit is I = 5.0 A, what is the current through the 12-? resistor?

A. 1.7 A B. 2.5 A C. 0.56 A D. 5.0 A E. 0.75 A

Physics & Space Science

Differentiate between accuracy and precision

Physics & Space Science