Question

Umbra is the _________ portion of the shadow.
please tell

Answer 1

Answer:

The umbra is the darkest type of shadow. Like any other opaque objects illuminated by a light source, the Moon and the Earth cast shadows into space as they block the sunlight that hits them. Each shadow has 3 different areas: the umbra, the penumbra, and the antumbra

Answer 2

Answer:

Umbra is the dark center portion of the shadow.