## DeBroglie Equation Use

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

vanessas0123
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

### DeBroglie Equation Use

Can someone explain when you would use DeBroglie's Equation and what it means?

Posts: 116
Joined: Thu Jul 25, 2019 12:15 am

### Re: DeBroglie Equation Use

De Broglie's Eqn is used to find the wavelength of any particle with momentum. Therefore, we can use this eqn. to calculate the wavelength of electrons and other subatomic properties. It also helps us distinguish what things have wavelike properties, based on how large the resulting wavelength is.

Jacey Yang 1F
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

### Re: DeBroglie Equation Use

DeBroglie equation is used to calculate the wavelength of any moving particle with linear momentum p. All matter has wavelike properties, but it is only noticed for objects of extremely small mass such as electrons.

kim 2I
Posts: 105
Joined: Thu Jul 25, 2019 12:17 am

### Re: DeBroglie Equation Use

De Brogile's wave equation can be used for any particle with momentum that has wave-like properties with a wavelength. The equation wavelength=h(planck's constant)/(momentum, or the particle's mass times speed) is usually used to find the wavelength of a traveling particle or electron.

Melvin Reputana 1L
Posts: 55
Joined: Sat Aug 17, 2019 12:16 am

### Re: DeBroglie Equation Use

Just like what the others have said, the De Broglie equation is used for any moving particle with momentum, p, which is mass * velocity. When reading a problem, I think a good indicator for using the De Broglie Equation would be when you're given the velocity and the mass of the object and you're asked to find the wavelength.

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

### Re: DeBroglie Equation Use

The equation is used to calculate wavelength of a particle with linear momentum. The equation is
wavelength(lambda) = h/m*v where h is Planck's constant (6.626*10^-34 Js) , m = mass of particle, v = velocity with which the particle is moving.
the formula could also be lambda = h/p(momentum) as momentum = m*v.