The photoelectric threshold wavelength of silver is 3250 × 10^-10 m. The velocity of the electron ejected from a silver surface by ultraviolet light…

The photoelectric threshold wavelength of silver is $\displaystyle 3250 \times 10^{-10} \mathrm{~m}$. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength $\displaystyle 2536 \times 10^{-10} \mathrm{~m}$ is : (Given $\displaystyle \mathrm{h}=4.14 \times 10^{-15} \mathrm{eVs}$ and $\displaystyle \mathrm{c}=3 \times 10^8 \mathrm{~ms}^{-1}$ )