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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 17 - Dual Nature of Radiation > A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [Given Planck’s constant h=6.6×10^−34Js, speed of light c=3.0×10^8 m/s]

A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [Given Planck’s constant h=6.6×10^−34Js, speed of light c=3.0×10^8 m/s]

A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [Given Planck's constant h=6.6×10^−34Js speed of light c=3.0×10^8 m/s]