- #1
Physics103
- 9
- 0
question:
A certain proton needs to have a lamba of 0.0055 x 10^-9m. What potential difference must this proton be accelerated to achieve this wavelength?
what i know:
im assuming that what we need to find in this question is the amount of kinetic enegry needed to achieve such a lambda.
E = hv / y y will represent lambda
i also know that
Ek = eV <--- potential difference
and that
Ek = 1/2mv^2
so eV = 1/2mv^2
and v is = E x lambda / h
so
eV = 1/2m (eV x lamba / h) ^2
am i on the right track here or am i completely lost??
A certain proton needs to have a lamba of 0.0055 x 10^-9m. What potential difference must this proton be accelerated to achieve this wavelength?
what i know:
im assuming that what we need to find in this question is the amount of kinetic enegry needed to achieve such a lambda.
E = hv / y y will represent lambda
i also know that
Ek = eV <--- potential difference
and that
Ek = 1/2mv^2
so eV = 1/2mv^2
and v is = E x lambda / h
so
eV = 1/2m (eV x lamba / h) ^2
am i on the right track here or am i completely lost??