Question

difference between umbra and penumbra​

Answer 1

Answer:

Basically, the umbra is the darkest area while the penumbra is the lighter region which is found at the perimeter. They are often associated with astronomy specially when it comes to eclipses. For instance, a lunar eclipse occurs when the moon passes through the earth's umbra.

Answer 2

Answer:

umbra is the direct shadows and penumbra is the shadow falling in the slanting side