When to use the de Broglie equation?

[romina_4C]

Do you only use this equation to find the wavelength or velocity of something that is not light (electrons, atoms, objects, etc.)?

[Lindsey Chheng 1E]

Do you only use this equation to find the wavelength or velocity of something that is not light (electrons, atoms, objects, etc.)?

Yes, I believe so since De Broglie is for any moving particle with momentum, p, that has wavelike properties with wavelength.

[Megan Ngai- 3B]

Whenever there is a mass given.
The equation E=hv and c=(wavelength)v would be specifically for light since c is used.

[Aprice_1J]

Is there an easy way to recognize if it is talking about light/photon properties or wavelength properties? What is usually given and what are you usually asked to find?

[HuyHa_2H]

Yeah, you pretty much use the De Broglie equation when you're given or given enough to find either the mass, velocity, or wavelength of an object that is not massless.

[Kylie Lim 4G]

For finding the wavelength of anything that is not light, or in the photoelectric effect if you need to find velocity of an electron