penumbra is an area of shadow lesser than umbra. true or false?
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Explanation:
The penumbra is a half-shadow that occurs when a light source is only partly covered by an object – for example, when the Moon covers the part of the Sun's light. ... The antumbra is the lighter part of the shadow that begins where the umbra ends. Hence in light of above knowledge the given statement is true.
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answer.
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