Question:

Monochromatic light of frequency 6 × 10^14 Hz is produced by a laser. The power emitted is 2 × 10^–3 W. How many photons per second on an average, are emitted by the source ? 

 

                                            JEE-2024         

Solution:                
Monochromatic light of frequency 6 × 10^14 Hz is produced by a laser. The power emitted is 2 × 10^–3 W. How many photons per second on an average, are emitted by the source ? JEE-2024

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