A light-emitting diode (LED) connected to a (3.0 mathrm{~V}) power supplyemits (440 mathrm{~nm}) blue light. The current
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A light-emitting diode (LED) connected to a \(3.0 \mathrm{~V}\) power supplyemits \(440 \mathrm{~nm}\) blue light. The current in the LED is \(10 \mathrm{~mA}\), and the LED is \(60 \%\) efficient at converting electric power input into light power output. How many photons per second does the LED emit?
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Related Book For 
College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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