De Broglie's Equation
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 100
- Joined: Thu Jul 25, 2019 12:15 am
-
- Posts: 64
- Joined: Thu Jul 11, 2019 12:16 am
Re: De Broglie's Equation
De Broglie's equation requires an object to have a mass, therefore, the equation cannot be used for light because light does not have a mass.
-
- Posts: 118
- Joined: Sat Jul 20, 2019 12:16 am
Re: De Broglie's Equation
The photons have no mass. Keep in mind that there is a similar situation in which we cannot apply equations for electromagnetic radiation to electrons. For example, we cannot use c = lambda nu for problems involving properties of electrons.
-
- Posts: 140
- Joined: Sat Sep 07, 2019 12:17 am
Re: De Broglie's Equation
De Broglie's equation is used for objects that has mass and behaves similarly to a wave. It also require momentum or velocity. Light theoretically doesn't have mass so the equation can't be used.
-
- Posts: 100
- Joined: Wed Sep 18, 2019 12:20 am
-
- Posts: 51
- Joined: Sat Jul 20, 2019 12:16 am
Re: De Broglie's Equation
The equation requires an object that has mass, but light does not have that. Thus, light cannot be used in this equation.
-
- Posts: 102
- Joined: Fri Aug 30, 2019 12:17 am
Re: De Broglie's Equation
While all the previous replies have stated that light doesn't have mass and I agree, I just wanted to add that I remember Dr. Lavelle saying that the equation can only be used for particles with rest mass (mass at rest). It can be applied to everything else but light.
-
- Posts: 94
- Joined: Wed Nov 14, 2018 12:22 am
Re: De Broglie's Equation
Light does not have mass, which is a required variable in the De Broglie equation.
-
- Posts: 99
- Joined: Fri Aug 02, 2019 12:16 am
Re: De Broglie's Equation
De Broglie used light in order to derive the equation. The equation will work for any particle with momentum and it has a wavelength with its properties.
-
- Posts: 105
- Joined: Thu Jul 11, 2019 12:15 am
Re: De Broglie's Equation
De Broglie suggested that the equation works for any particle with momentum, that has a rest mass, and has wavelike properties.
-
- Posts: 52
- Joined: Wed Sep 18, 2019 12:21 am
Re: De Broglie's Equation
The first equation you've listed is the De Broglie equation and that's used for electrons or objects that have a mass. You cannot use light with the De Broglie equation. The second equation you CAN use for photons (light).
-
- Posts: 50
- Joined: Fri Aug 09, 2019 12:17 am
Re: De Broglie's Equation
since wavelength=h/mv, the object must have a mass. While Light has a velocity, it does not have a mass to calculate
-
- Posts: 99
- Joined: Wed Sep 18, 2019 12:18 am
Re: De Broglie's Equation
A photon does not have mass which is required for the de Broglie's equation where
-
- Posts: 45
- Joined: Sat Aug 17, 2019 12:16 am
Re: De Broglie's Equation
You need to have mass to use the De Broglie Equation, however photons of light do not have mass.
-
- Posts: 96
- Joined: Wed Nov 21, 2018 12:19 am
Return to “DeBroglie Equation”
Who is online
Users browsing this forum: No registered users and 1 guest