If the following matter waves travel with equal velocity, the longest wavelength is that of a/an.
- electron
- proton
- neutron
- $\alpha-$ particle
Solution
\lambda=\frac{\mathrm{h}}{\mathrm{mv}}
$$
$\lambda$ will be large if $\mathrm{m}$ is small
Asked in: JEE-TOPICTESTS-CHEMISTRY