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Light Radiation Pressure Calculator
Use this online light radiation pressure calculator with labeled inputs and a worked example. p = I(1+reflectivity)/c.
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photon pressure calculator online
Use light radiation pressure calculator online with the physical quantities shown below. Opaque surface at normal incidence; remaining light is absorbed and no light is transmitted.
How to use it
Enter Normally incident intensity (W/m²). Set Reflected fraction (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.
Options and example settings
Calculation method
p = I(1+reflectivity)/c
Worked examples
Worked case for light radiation pressure calculator. Opaque surface at normal incidence; remaining light is absorbed and no light is transmitted.
Light Radiation Pressure Calculator — example with explicit inputs
Settings: Reflected fraction (dimensionless): 1
Input:
1000
Expected result for the example input and options:
Output:
{
"pressure_Pa": 0.000006671281903963041
}Limitations and common mistakes
- Opaque surface at normal incidence; remaining light is absorbed and no light is transmitted.
- Match every input to its displayed unit; scientific notation such as 1e-6 is accepted.
- This is the documented idealized model; real systems may require additional effects and measurement uncertainty.
Frequently asked questions
How can I use photon pressure calculator online?
Enter Normally incident intensity (W/m²). Set Reflected fraction (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.
Which model does Light Radiation Pressure Calculator use?
p = I(1+reflectivity)/c. Opaque surface at normal incidence; remaining light is absorbed and no light is transmitted.
Technical references
Where is my input processed?
The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.
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