An electron in an atom is excited from a orbital radius r to an orbit of radius 4r. Calculate the change in velocity of the electron ?
1
\(\Delta V = V_{1}\)
2
\(\Delta V = \frac{V_{1}}{2}\)
3
\(\Delta V = \frac{3}{4}V_{1}\)
4
\(\Delta V = \frac{V_{1}}{4}\)