A weak laser beam with a 1mm diameter is directed in the z direction and is absorbed by a place black surface. The laser is at 700nm and produces an average of 10^12 photons per second. Determine the Poynting vector of this beam. Determine the electric and magnetic field maximum strength. What is the time between successive maximums in seconds? At a certain time the electric field points in the +x direction. What is the direction of the

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A weak laser beam with a 1mm diameter is directed in the z direction and is absorbed by a place
black surface. The laser is at 700nm and produces an average of 10^12 photons per second.
Determine the Poynting vector of this beam.
Determine the electric and magnetic field maximum strength.
What is the time between successive maximums in seconds?
At a certain time the electric field points in the +x direction. What is the direction of the
magnetic field at this time?
What colour is this?
Transcribed Image Text:A weak laser beam with a 1mm diameter is directed in the z direction and is absorbed by a place black surface. The laser is at 700nm and produces an average of 10^12 photons per second. Determine the Poynting vector of this beam. Determine the electric and magnetic field maximum strength. What is the time between successive maximums in seconds? At a certain time the electric field points in the +x direction. What is the direction of the magnetic field at this time? What colour is this?
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