What is the region of darkness formed on a screen, when an opaque object blocks the path of light?
A
Shadow
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B
Luminosity
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C
Image
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D
Reflection
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Solution
The correct option is A Shadow A shadow is a relatively darker patch formed on a screen when an opaque or translucent object blocks the path of light. The shape and size of a shadow depends on the distance between the object and screen and the distance between light source and the object.