Multiple choice

"A region of partial darkness, which surrounds the area of complete darkness". Which of the following phenomena best describes the statement given above?

  1. Umbra

  2. Penumbra

  3. Shadow

  4. Ant umbra

  5. None of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A region of partial darkness, which surrounds the area of complete darkness.