calculate-the-percent-efficiency-for-the-conversion-of-power-to-light-for-a-cert

Question

Calculate the percent efficiency for the conversion of power to light for a certain LED light that uses 144.0 watts of electrical power to emit 1.27×$$10^{20} 535-nm $$photons per second.

Accepted Answer

32.8%

Answer

15.3%

Answer

22.4%

Answer

43.7%

Calculate the percent efficiency for the conversion of power to light for a certain LED light that uses 144.0 watts of electrical power to emit 1.27×1020 535-nm photons per second.

Calculate the percent efficiency for the conversion of power to light for a certain LED light that uses 144.0 watts of electrical power to emit 1.27×10²⁰ 535-nm photons per second.