Question

Alpha particles have a mass of mα=6.64×10−27 kg.mα=6.64×10−27 kg.

Calculate the de Broglie wavelength λ1λ1 of an alpha particle that has a kinetic energy of K1=1.90×10−13 J.K1=1.90×10−13 J.

λ1=λ1=

m m

Calculate the de Broglie wavelength λ2λ2 of an alpha particle that has a kinetic energy of K2=5.00×10−13 J.K2=5.00×10−13 J.

λ2=λ2=

Answer 1