Radiation pressure calculation (verification)

In summary, radiation pressure is the force exerted by electromagnetic radiation on matter, caused by the transfer of momentum from photons to particles. It is calculated using the formula P = F/A, where P is the pressure, F is the force exerted by the radiation, and A is the area of the surface on which the radiation is incident. It is important to verify these calculations to ensure accuracy and reliability of results, as radiation pressure can have significant effects on objects in space. Factors that can affect these calculations include the wavelength and intensity of the radiation, the material properties of the surface, and the angle of incidence. Verification can be done through experiments and simulations.
  • #1
Bernie G
330
13
If 1 kilogram of matter is converted into radiation and contained in 1 cubic meter, and the radiation reflects perfectly off the walls, is the pressure 9 X 10^16 or 3 X 10^16? Ie.- Is the pressure pc^2 or (pc^2)/3 (where p is the equivalent mass density) as given in http://en.wikipedia.org/wiki/Photon_gas ?
 
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  • #2
Or is the pressure (2pc^2)/3 ?
 

FAQ: Radiation pressure calculation (verification)

What is radiation pressure?

Radiation pressure refers to the force exerted by electromagnetic radiation on matter. It is caused by the transfer of momentum from photons to particles in the matter.

How is radiation pressure calculated?

Radiation pressure is calculated using the formula P = F/A, where P is the pressure, F is the force exerted by the radiation, and A is the area of the surface on which the radiation is incident. The force can be calculated by multiplying the energy of the photons by the number of photons hitting the surface per unit time.

Why is it important to verify radiation pressure calculations?

It is important to verify radiation pressure calculations to ensure accuracy and reliability of results. Radiation pressure can have significant effects on objects in space, and accurate calculations are crucial for understanding and predicting these effects.

What factors can affect radiation pressure calculations?

The factors that can affect radiation pressure calculations include the wavelength and intensity of the radiation, the material properties of the surface, and the angle of incidence of the radiation.

How can radiation pressure calculations be verified?

Radiation pressure calculations can be verified through experiments and simulations. Experiments involve measuring the force exerted by radiation on a known surface and comparing it to the calculated value. Simulations use mathematical models to predict the force and compare it to the calculated value.

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