The Apparent Brightness of a Star Is 1

question 11

Multiple Choice

The apparent brightness of a star is 1.0 × 10^-12 W/m² and the peak wavelength is 600 nm. Estimate its distance from us.

• A)0.090 pc
• B)0.90 pc
• C)9.0 pc
• D)90 pc
• E)900 pc

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Definitions:

Emotionally Aroused

A state of heightened emotional engagement, which can affect cognition, perception, and physical responses.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, involved in regulating visceral functions (e.g., heart rate).

Hormone

A chemical substance that is manufactured and released in one part of the body and affects other parts of the body.

Hippocampus

A crucial structure within the brain's limbic system involved in memory formation and spatial navigation.