Chemistry, 13.12.2019 07:31 anjali9788
Awide light source creates a shadow with two parts. from which part can the light source be partiallly seen?
a) the light source can be seen from the umbra
b) the light source can be seen from the penumbra
c) the light source can be seen from both parts of the shadow.
d) the light source can be seen from neither part o the shadow.
Answers: 2
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Awide light source creates a shadow with two parts. from which part can the light source be partiall...
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