The kinetic energy of an electron, α -particle and a proton are given as 4 K, 2 K and K respectively. The de-Broglie wavelength associated with…

The kinetic energy of an electron, $\displaystyle \alpha$-particle and a proton are given as $\displaystyle 4 \mathrm{~K}, 2 \mathrm{~K}$ and K respectively. The de-Broglie wavelength associated with electron ( $\displaystyle \lambda \mathrm{e}$ ), $\displaystyle \alpha$-particle ( $\displaystyle (\lambda \alpha)$ and the proton $\displaystyle (\lambda p)$ are as follows: