ICSE Class 6 Answered
True/False
1) A total dark region is called umbra.
Physics Question
Asked by ShucheeGupta76 | 28 Sep, 2018, 02:25: PM
Expert Answer
The statement is true.
The umbra is innermost darkest region of the shadow. While, penumbra is the only part of shadow which is formed when some part or whole light source is obstructed by an opaque object.
As shown in diagram, total dark region is denoted by 'AD' while penumbra is denoted by 'BC'.
Answered by Shiwani Sawant | 28 Sep, 2018, 04:21: PM
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