35. Special Relativity
Inertial Reference Frames
35. Special Relativity Inertial Reference Frames
110PRACTICE PROBLEM
A light emitting diode (LED) uses 2.5 W and has an emission wavelength of 480 nm. 20% of the 2.5 W power is dissipated as thermal energy into the surrounding environment. Determine what the number of photons that the LED will emit per second.
A light emitting diode (LED) uses 2.5 W and has an emission wavelength of 480 nm. 20% of the 2.5 W power is dissipated as thermal energy into the surrounding environment. Determine what the number of photons that the LED will emit per second.