Page 1 of 1

### Calculating wavelength of an electron

Posted: Thu Apr 26, 2018 4:03 pm
When you know the velocity of an electron, how do you then calculate the wavelength?
Thanks

### Re: Calculating wavelength of an electron

Posted: Thu Apr 26, 2018 5:46 pm
You could use De Broglie's equation: lambda=h/mV, where h is Planck's constant, m is the mass of the electron (which is a constant that would be given to you or you could just look it up) in kg, and V is the velocity in m/s.

### Re: Calculating wavelength of an electron

Posted: Sun Apr 29, 2018 6:23 pm
When you know velocity of an electron and need to know wavelength use De Broglie's equation. lambda= h/mv

### Re: Calculating wavelength of an electron

Posted: Sun May 06, 2018 4:05 pm
You know velocity and I believe the mass of an electron is a constant. Therefore, you have mass, velocity, and Planck's, so you can use De Broglie's equation.

### Re: Calculating wavelength of an electron

Posted: Sun May 06, 2018 5:06 pm
In order to calculate the wavelength you will use the equation λ=h/mv