A lamp emits which beam of light
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A group of parallel rays of light emitted by a source of light is called beam of light. The objects which emit light are known as luminous objects e.g. the sun, a burning candle, an electric bulb etc.
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A group of parallel rays of light emitted by a source of light is called beam of light. The objects which emit light are known as luminous objects e.g. the sun, a burning candle, an electric bulb etc.
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