Number of photons of equal energy emitted per second by a 6…

Physics Oscillations and Waves Electromagnetic Waves Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: September 13, 2026

Number of photons of equal energy emitted per second by a 6 mW laser source operating at 663 nm is . (Given: . s and )

Text Solution

Verified by Experts

The correct answer is:

Power of laser:

Energy of a single photon at wavelength :

Number of photons emitted per second:

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