If a luminous object were moved to one-half the original distance, it would appear a. one-half as bright. b. just as bright. c. twice as bright. d. four times brighter. e. eight times brighter.
If a luminous object were moved to one-half the original distance, it would appear a. one-half as bright. b. just as bright. c. twice as bright. d. four times brighter. e. eight times brighter.
Astronomy
1st Edition
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Chapter5: Radiation And Spectra
Section: Chapter Questions
Problem 32E: Go outside on a clear night, wait 15 minutes for your eyes to adjust to the dark, and look carefully...
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If a luminous object were moved to one-half the original distance, it would appear
a. |
one-half as bright.
|
|
b. |
just as bright.
|
|
c. |
twice as bright.
|
|
d. |
four times brighter.
|
|
e. |
eight times brighter.
|
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