Monochromatic light of frequency \(6.0\times 10^{14}~\text{Hz}\) is produced by a laser. The power emitted is \(2.0\times 10^{-3}~\text{W}\) How many photons per second, on average, are emitted by the source?
1. \(6\times 10^{15}\)
2. \(5\times 10^{14}\)
3. \(6\times 10^{14}\)
4. \(5\times 10^{15}\)