Question

give a long defination on umbra and penumbra​

Answer 1

Answer:

During an eclipse, two shadows are cast. The first is called the umbra (UM bruh). ... It is the dark center of the eclipse shadow. The second shadow is called the penumbra (pe NUM bruh). The penumbra gets larger as it goes away from the sun

Answer 2

Answer:

A conical shadow excluding all light from a given source. Called a umbra

Penumbra- the outer part of a shadow that is less dark then the central part