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There are ${\mathrm{n}}_{1}$ photons of frequency ${\mathrm{\gamma }}_{1}$ in a beam of light. In an equally energetic beam, there are ${\mathrm{n}}_{2}$ photons of frequency ${\mathrm{\gamma }}_{2}$ . Then the correct relation is
(a) $\frac{{\mathrm{n}}_{1}}{{\mathrm{n}}_{2}}=1$                        (b) $\frac{{\mathrm{n}}_{1}}{{\mathrm{n}}_{2}}=\frac{{\mathrm{\gamma }}_{1}}{{\mathrm{\gamma }}_{2}}$
(c)  $\frac{{\mathrm{n}}_{1}}{{\mathrm{n}}_{2}}=\frac{{\mathrm{\gamma }}_{2}}{{\mathrm{\gamma }}_{1}}$                     (d) $\frac{{\mathrm{n}}_{1}}{{\mathrm{n}}_{2}}=\frac{{\mathrm{\gamma }}_{1}^{2}}{{\mathrm{\gamma }}_{2}^{2}}$