Multiple choice general knowledge science & technology

A full moon is -- times brighter than a half moon.

  1. 9

  2. 10

  3. 11

  4. 12
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A full moon appears approximately 9 times brighter than a half moon to observers on Earth, despite having only twice the illuminated area. This is because lunar surface dust creates a opposition surge effect, making the full moon appear disproportionately brighter when sunlight reflects directly back at Earth.

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