Physics, 01.07.2019 12:40 charati1317

Alightbulb has an effciency of 8.2%. how much light energy (not heat energy) is generated by the bulb every second if the buld has pwer of 21w?

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Alightbulb has an effciency of 8.2%. how much light energy (not heat energy) is generated by the bul...