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If luminous flux of 200 watt lamp is 400 lumen then calculate the luminous efficiency of the lamp... |
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Answer» Kaise solve hoga? Ye question hamari class ka nahin lagta Hahahahaa ???????? Bhaag gayii Maine ek question poocha usse pagal Bana Rahi hai??? Soo easy question dekhte h akriti bata paati h ki nhi |
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