Question

1. scientist discover a star with a magnitude of 10. what can they infer about the star? it is the same brightness as the sun. it is brighter than the sun. it is dimmer than the sun.

Explanation:

To solve this, we analyze the magnitude scale (lower magnitude means brighter). The Sun has a magnitude around -26.7. A star with magnitude 10 has a higher (larger) magnitude value than the Sun’s. Since higher magnitude means dimmer (magnitude is a logarithmic scale where smaller numbers are brighter), a magnitude of 10 is dimmer than the Sun.

1. Recall the magnitude - brightness relationship: Lower magnitude (e.g., -26.7 for Sun) = brighter; higher magnitude = dimmer.
2. The star’s magnitude (10) is higher than the Sun’s. Thus, it is dimmer.

Answer:

C. It is dimmer than the sun (assuming the third option is "It is dimmer than the sun")