In the given figure, flower made of thick coloured paper has been pasted on the transparent glass sheet. What will be the shape and colour of shadow seen on the screen?
Fig. 11.11

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Solution

A shadow is formed when an object blocks the path of light. Here, the flower made of thick coloured paper blocks the path of the light as it's opaque, but the transparent glass sheet part will allow all the light to pass through it.

Hence dark shadow is formed in the shape of the flower on the screen.

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Fig. 11.11

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