Question

Find the momentum and energy of a particle with mass of 5 X 10 -31kg
and a de Broglie wavelength of 180 Å. (b) An electron has a kinetic energy of 20 meV.
Determine the de Broglie wavelength

Answer 1

Explanation:

multiple by 100 all factors and substract by same to same factor add 1 it's answer