Outline Objective

[Emerson Gaspar 1D]

For the bullet point that covers Einstein's Equation on the Quantum World Outline, it says to use the equation to "calculate the energy, frequency, or number of photons emitted from a light source". I've been able to find examples of how to find the energy and frequencies given the equation, but would someone know of an example (textbook or otherwise) where we use Einstein's equation to calculate the number of photons emitted?

[George_Furey_1C]

In order to find the number of photons, you must use the equation: Total energy = # of photons * Energy of one photon. Any problem that asks for number of photons in the textbook would be an example of this. You can use the equation E=hv to find the energy of one photon and the total energy, then solve accordingly for the number of photons.