Give one word for: A part of the shadow that does not receive light at all.
Hence, umbra is the answer
The portion of shadow that receives no light is the __________ and the portion that receives light from a part of the source is the ____________.
Give one word for:
An object which does not allow light to pass through.
Give word for:
An object which does not emit light of its own.
A shadow of the heavenly object.