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Calculating wavelength of an electron

Posted: Thu Apr 26, 2018 4:03 pm
by Toru Fiberesima 1L
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
by Tiffany Chen 1A
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
by MariaJohn1D
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
by Molly Oakes 1A
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
by Alondra Juarez section 1E
In order to calculate the wavelength you will use the equation λ=h/mv