## equation definition

$\lambda=\frac{h}{p}$

Reese - Dis 1G
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Joined: Fri Sep 28, 2018 12:15 am

### equation definition

How is the de broglie equation different from the actual wavelength equation? Is the debroglie only for moving objects?

Desiree1G
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am
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### Re: equation definition

I believe the difference is that de Broglie's equation includes matter. Matter according to the de Broglie has wave-like behavior and this equation, therefore, is meant to include how to calculate the wavelength of an object of mass. The wave equation we worked with initally (c=wavelength*v) did not include mass or momentum.

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

### Re: equation definition

The De Broglie equations includes the mass and velocity of a given particle while the normal wavelength equation can also be associated with light. You can tell which equation to use in a given situation based upon the parameters listed in the question.

Xingzheng Sun 2K
Posts: 62
Joined: Fri Sep 28, 2018 12:29 am

### Re: equation definition

De Broglie equation describes the status of a single quantum, which includes the mass and velocity. Therefore, the object has to be in motion.

Posts: 21
Joined: Fri Sep 28, 2018 12:26 am

### Re: equation definition

The De Broglie equation has to do with the matter. For instance, moving objects like a baseball. When solving for the wavelength of light, it is matterless.

2c_britneyly
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

### Re: equation definition

You use De Broglie's equation for objects with mass. This includes everyday objects, electrons, and protons. You use E=hv when you are doing calculations for a photon since a photon has no resting mass.