Answer:
The velocity of electrons is 1617.27 m/s.
Explanation:
Given that,
Wavelength of light, [tex]\lambda=450\ nm=450\times 10^{-9}\ m[/tex]
Mass of an electron, [tex]m=9.11\times 10^{-31}\ kg[/tex]
We need to find the velocity of electrons. It can be given by using De-Broglie wavelength such that :
[tex]\lambda=\dfrac{h}{mv}\\\\v=\dfrac{h}{m\lambda}\\\\v=\dfrac{6.63\times 10^{-34}}{9.11\times 10^{-31}\times 450\times 10^{-9}}\\\\v=1617.27\ m/s[/tex]
So, the velocity of electrons is 1617.27 m/s. Hence, this is the required solution.
