If the Distance Between Us and a Star Is Doubled

question 115

Multiple Choice

If the distance between us and a star is doubled, with everything else remaining the same, its luminosity

• A)is decreased by a factor of four, and its apparent brightness is decreased by a factor of four.
• B)is decreased by a factor of two, and its apparent brightness is decreased by a factor of two.
• C)remains the same, but its apparent brightness is decreased by a factor of four.
• D)is decreased by a factor of four, but its apparent brightness remains the same.
• E)remains the same, but its apparent brightness is decreased by a factor of two.

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Definitions:

Communication

The process of exchanging information, ideas, and feelings through various methods, such as speech, writing, or gestures, enabling understanding between individuals or groups.

Feedback

The process of providing information or comments about something, such as a person's performance or a product's quality, to help improve or affirm it.

Transmission of Meaning

involves conveying thoughts, ideas, or information from one entity to another through a mutually understood medium or channel.

Communication

The exchange or transmission of information, ideas, or feelings between individuals or groups, often through a mutually understood system of symbols.