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The number of photons released each second is calculated using the formula: Total power divided by the energy of a single photon.

1. P / hν
2. 10000 / (6.6×10^-34 × 880×10^3)
3. 1.72×10^31
4. None of these

Correct answer: P / hν

Solution

The formula for the number of photons emitted per second is derived as n = Power / Energy of a single photon. Since the energy of a photon is given by E = hν, the correct expression is n = P / hν.

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