The Luminosity of a Star Is

question 118

Multiple Choice

The luminosity of a star is

• A) its brightness as seen by people on Earth.
• B) its brightness if it were at a distance of 10 pc (32.6 ly) from Earth.
• C) its total energy output into all space.
• D) another name for its color or surface temperature.

---

Definitions:

Variable Manufacturing Costs

Expenses that change in proportion to the production volume, such as raw materials and direct labor costs.

Differential Effect

The impact of a business decision on the revenue or cost, highlighting the difference between two alternatives.

Useful Life

The estimated period of time during which an asset is expected to be usable for the purpose for which it was acquired.

Relevant Revenues

Revenues that directly relate to a specific business decision or activity.