• anonymous
Calculate the wavelength of a proton with energy 2.45 eV. what's different between proton and photon formula? can anyone tell me? thank you
  • Stacey Warren - Expert
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
  • chestercat
I got my questions answered at in under 10 minutes. Go to now for free help!
  • Frostbite
Are you sure you are going to calculate the energy of a proton and not a photon? A "proton" is atomic materiale. a "photon" however is a light particle and can for an example be admitted when an electron falls to a lower energy state.
  • aaronq
one formula (planck's) is for massless particles (i.e. photons) the other (deBroglie's) is for things with mass... so, for this question, find the velocity, v, of the particle: \[K.E.=\frac{ 1 }{2 }mv ^{2}\] then use the deBroglie equation: \[\lambda=\frac{ h }{ mv }\] wavelength is in meters, velocity in m/s, mass in Kg.

Looking for something else?

Not the answer you are looking for? Search for more explanations.