why can you see an electric bulb at night when it is switched on
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why can you see an electric bulb at night when it is switched on
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(a) If we switch on an electric bulb in this dark room as a light source we can see bulb due to the light emitted by it.
(b) If we switch on an electric bulb in this dark room as a light source we can see a piece of white paper as it reflects the light from the bulb falling on it.
Answer:
It is because it is a source of light and we can see it because it reflects light to our eyes.