10. In many old-style filament lamps, as much as 93 J of energy is emitted as thermal energy for every 7 J of energy emitted as light. What is the efficiency of the lamp, as the percentage of electrical energy converted to light energy? A 7% B 8% C 92% D 93%
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We are given that for every 7 J of energy emitted as light, 93 J of energy is emitted as thermal energy in an old-style filament lamp. We need to find the efficiency of the lamp, which is the percentage of electrical energy converted to light energy. Show more…
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