Page 1 of 1

De Brogile's equation

Posted: Sun Apr 22, 2018 11:47 pm
by Maldonado3K
Can someone explain what Lavelle meant when he said not to use the equation for a photon for questions related to light?

Re: De Brogile's equation  [ENDORSED]

Posted: Sun Apr 22, 2018 11:58 pm
by Komal Prakash 1H
We cannot use the De Brogile's equation for light, because wavelength=h/momentum, and momentum equals mass times velocity. Since photons do not have a mass, momentum would be zero, and we cannot divide by zero.

Re: De Brogile's equation

Posted: Mon Apr 30, 2018 12:06 am
by Vienna Cimetta 1L
The equation can only be used for something that has a rest mass. A photon of light does not, and therefore the equation cannot be used.

Re: De Brogile's equation

Posted: Mon Apr 30, 2018 2:12 pm
by juliaschreib1A
Why do photons not have mass?? doesn't every existing thing have mass?

Re: De Brogile's equation

Posted: Mon Apr 30, 2018 3:13 pm
by Chem_Mod
Photon is quantized electromagnetic radiation. It is a specific amount of energy and thus it does not have mass.