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प्रश्न
Draw a ray diagram to show the formation of the shadow of an opaque object by a point source of light. How is the size of shadow affected if the screen is moved away from the object?
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उत्तर

If we move the screen away from the object, the shadow increases in size.
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संबंधित प्रश्न
Select the correct alternative.
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In the following diagram, draw rays to form umbra on the screen.

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Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
| O W S | A K E | O P A Q | U E O | B J E T | T S M |
| S H A D |
______ is always against, opposite side of light source.
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