You have 3 opaque strips with very small holes of different shapes, as shown in the figure. If you obtain an image of the sun on a wall through these holes, will the image formed by these holes be the same or different?

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Solution

All three strips will form the same kind of image of the sun irrespective of their shapes. [1 mark]

The holes in the strips work as a pinhole camera and the image of the sun will be obtained on the wall. [1 mark]

Also, as the light moves in a straight line, therefore the image of the sun will be the same in all cases. [1 mark]

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