Answer :
Let the number of photons N
Therefore on the surface: F = N (h/λ)
Given F = 4.6 nN
assume λ = 633 nm
[tex]N = \frac {4.6 \times 10^-9 \times 633 \times 10^-9} {6.63\times10^-34} photons/s[/tex]
[tex]N = 4.68 \times 10^{18} photons/s[/tex]
what are photons?
A photon is a basic particle that's a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless, so they continuously move at the speed of light in a vacuum, 299792458 m/s
photons are quantized packets of energy. the wave nature of photons can be demonstrated as they have a wavelength. the molecule nature is given by them having both velocity and mass.
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