Wavelength and KE


Moderators: Chem_Mod, Chem_Admin

605379296
Posts: 58
Joined: Sat Aug 17, 2019 12:16 am

Wavelength and KE

Postby 605379296 » Thu Nov 07, 2019 8:03 pm

How do we find wavelength when we're given the kinetic energy in Joules?

Adrianh72
Posts: 48
Joined: Sat Aug 17, 2019 12:16 am

Re: Wavelength and KE

Postby Adrianh72 » Thu Nov 07, 2019 8:12 pm

By using the DeBroglie and Kinetic Energy Equations, wavelength comes out equaling λ = h/√(2mE)

Eesha Chattopadhyay 2K
Posts: 104
Joined: Fri Aug 09, 2019 12:16 am

Re: Wavelength and KE

Postby Eesha Chattopadhyay 2K » Sun Nov 10, 2019 11:25 pm

If you add the kinetic energy to the threshold energy, you get the energy per photon that's being used in this photoelectric experiment. From there you use E=hv and c=v(wavelength) to find the wavelength.


Return to “Einstein Equation”

Who is online

Users browsing this forum: No registered users and 1 guest