Is it true that if we stand in a dark room in front of the mirror, we will see our reflection in the mirror?

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Detailed Solution

The above statement is True.
We will not see our reflection because we need light for that. When the light falls on a rough object, it reflects in different directions. This is called an irregular reflection. This helps us see around us. When we stand in a room that has a light source, we will be able to see our reflection in the mirror. When light falls on a polished surface, it reflects as a beam. This is called regular reflection.
This activity should be done at night or in a dark room. Ask your friend to hold a mirror in his hand at one corner of the room. Stand at another comer with a torch in your hand. Cover the glass of torch with your fingers and switch it on. There should be small gap between your fingers. Direct the beam of torch-light on to the mirror that your friend is holding. Adjust the direction of torch so that patch of light falls on your friend standing in the room. This activity shows the reflection of light also that light travels in straight line.
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