Question

If travelling at same speeds, which of the following matter waves have the shortest wavelength?

• A. Electron
• B. Alpha particle $(He^{2+})$
• C. Neutron
• D. Proton

Answer 1

Answer: (B)

Alpha particle $(He^{2+})$

Answer 2

$\lambda=\frac{h}{mv}$ if $v$ is same, then higher the value of $m$ means lower will be the value of $\lambda$.