Question

The total energy output of a star per second is called _____. Select all that apply. A. power B. luminosity C. visible radiation D. electromagnetism

Answer 1

B. luminosity is the correct answer.

Step-by-step explanation:

• The total energy output of a star per second is called luminosity.

• Luminosity is an important characteristic of the star.

• The total amount of energy emitted per second by the star is described as its luminosity.

• The apparent light of the star depends on its luminosity.
• The size and surface temperature of the star decide its luminosity.
• Luminosity is expressed in units such as joules per second or Watts.