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प्रश्न
Answer the following.
What is meant by luminous intensity? What is one lumen?
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उत्तर
The measurement of the brightness of the light is called luminous intensity.
One lumen is considered to 1 / 1256 th of candle power.
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संबंधित प्रश्न
Write true or false of the following statement.
The moon is a natural source of light.
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Answer the following.
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