sir..urgent..plz answer..
Asked by
| 17th Sep, 2011,
01:00: PM
Expert Answer:
The "rate of emission of quanta" means the number of quanta per second.
Energy of photon = h x c / lambda (wavelength)
Power = change in energy / change in time
Surface area of sphere = 4?r
Power = change in energy / change in time
Surface area of sphere = 4?r
Answered by
| 17th Sep, 2011,
11:57: PM
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