There are $n_1$ photons of frequency $\nu_1$ in a beam of light. In an equally energetic beam,there are $n_2$ photons of frequency $\nu_2$. Then the correct relation is

• A
  $\frac{n_1}{n_2} = 1$
• B
  $\frac{n_1}{n_2} = \frac{\nu_1}{\nu_2}$
• C
  $\frac{n_1}{n_2} = \frac{\nu_2}{\nu_1}$
• D
  $\frac{n_1}{n_2} = \frac{\nu_1^2}{\nu_2^2}$