How many watts-per-meter-squared is 1-photon-per-second if the photonis a 2 GHz radio wave?

[Green Xenon [Radium]]

Hi:

How many watts-per-meter-squared is 1-photon-per-second if the photon is
a 2 GHz radio wave?


Thanks,

Radium

 

[R.H. Allen]

Hi:

How many watts-per-meter-squared is 1-photon-per-second if the photon is
a 2 GHz radio wave?

Assuming you mean 1 photon per second per square meter, that's 1.3
yW/m^2 (that's 1.3 yoctowatts per square meter, or 1.3e-24 watts per
square meter).