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Question
What will be shape of the shadow on the screen? (Note that the cylinder is an opaque object)
What will be shape of the shadow on the screen? (Note that the cylinder is an opaque object)
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Solution
The correct option is B Rectangle
Light travels in a straight line. A shadow is an area where light is absent. So, if light falls on a cylindrical opaque object, like in the given figure. Therefore, a rectangular area is blocked by the cylinder. So, the shape of the shadow will be a rectangle.
Light travels in a straight line. A shadow is an area where light is absent. So, if light falls on a cylindrical opaque object, like in the given figure. Therefore, a rectangular area is blocked by the cylinder. So, the shape of the shadow will be a rectangle.
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