Question

what is the difference between penumbra and umbra?

Answer 1

Answer:

The difference s between an umbra and a penumbra are : Umbra- It is the portion of shadow where no light reaches from the source of light due to the opaque object. ... Penumbra- It is the portion of shadow where a portion of light from the source of light reaches the opaque object in between them.

Answer 2

Answer:

The dark part of the shadow is the umbra, and the part of a shadow that's a little lighter is the penumbra. They can be experienced on Earth, but more readily in space, such as during a solar eclipse, when the Moon moves in front of the Sun and leaves a shadow on Earth.

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