Monochromatic light of frequency 6.0 \\times10^{14} {Hz} is produced by a laser. The power emitted is 2 \\times10^{-3} {W}. The number of photons emitted, on the average, by the source per second is (2007)

Class 12 NEET Physics Dual Nature of Matter and Radiation

Question : 61 of 107

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Monochromatic light of frequency 6.0×1014 Hz is produced by a laser. The power emitted is 2×10−3 W. The number of photons emitted, on the average, by the source per second is

(2007)

5×1016
5×1017
5×1014
5×1015

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