Physics, asked by rohinipgadage, 1 day ago

2. define : a) penumbra b) umbra

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Answered by vinodthomas59

Answer:

Definition of penumbra

1a : a space of partial illumination (as in an eclipse) between the perfect shadow on all sides and the full light. b : a shaded region surrounding the dark central portion of a sunspot.

Definition of umbra

the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.

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