9. Quantum Mechanics
Photoelectric Effect
9. Quantum Mechanics Photoelectric Effect
16PRACTICE PROBLEM
A light beam gives off 3.2 J/s continuous power. If the beam has a 4.3 cm diameter and 452 pm wavelength, how many photons go thru a 0.89 cm hole per second?
A light beam gives off 3.2 J/s continuous power. If the beam has a 4.3 cm diameter and 452 pm wavelength, how many photons go thru a 0.89 cm hole per second?