A luminous body emits its own light and we are able to see them. How is it that we are able to see non-luminous bodies? [2 marks]

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Solution

To see an object, light from the object must reach our eyes.

A non-luminous body doesn't emit its own light. When light from a luminous source hits the body, it gets reflected. When this reflected ray reaches our eyes, we are able to see the object. [2 marks]

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