## Units in DeBrogile Equation

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

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marisaimbroane1J
Posts: 69
Joined: Fri Sep 28, 2018 12:23 am

### Units in DeBrogile Equation

Although I keep getting the correct answers for homework problems using this equation, I cannot seem to figure out how the units cancel in order to get the correct ones (eg meters or meters/sec). Can anyone explain how it works?

Searra Harding 4I
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

### Re: Units in DeBrogile Equation

One joule is equivalent to other units. You can use this equation: 1J = (1kg)*(m^2)*(s^-2). Once substituting joules for these units, you can often cancel certain ones out. For example, J * s is the unit for h, but it can also be written as (1kg)*(m^2)*(s^-1) because of the multiplied s.

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