In a sunspot, the umbra is cooler than the penumbra.

Name: In a sunspot, the umbra is cooler than the penumbra.
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Question

Quizplus · Accepted Answer

This statement is correct. The umbra is the darker central region of a sunspot where the magnetic field is strongest, and it is cooler than the surrounding penumbra. The penumbra is the lighter region surrounding the umbra, where the magnetic field is weaker, and it is slightly warmer than the umbra.

In a Sunspot, the Umbra Is Cooler Than the Penumbra