Which of the following equations represents the velocity $(v)$ of the ejected electrons when a metal is struck with light of frequency $\nu$ and the threshold frequency of the metal is $\nu_0$? ($m_e =$ mass of electron and $h$ is Planck's constant).
- A$v = \sqrt{\frac{h(\nu-\nu_0)}{m_e}}$
- B$v = \sqrt{\frac{2h(\nu-\nu_0)}{m_e}}$
- C$v = \sqrt{\frac{h(\nu-\nu_0)}{2m_e}}$
- D$v = \sqrt{h(\nu-\nu_0)m_e}$
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