- #1
Benzeen
- 7
- 0
If you had an extremely sensitive scale (use your imagination) and shone a beam of light upon it, could you measure the force that the photons were exerting on the scale? would there even be a force?
zonde said:You can find more about this question if you will search for "radiation pressure". For example in wikipedia - http://en.wikipedia.org/wiki/Radiation_pressure"
In wikipedia it is said that this pressure is proved experimentally in 1900.
EDIT: To give perspective of scale I once tried to calculate what it is compared to gravity. It came out that Sun's radiation pressure against Earth is of 15 orders lower compared to gravitational attraction by the Sun.
The fact that electromagnetic radiation exerts a pressure upon any surface exposed to it was deduced theoretically by James Clerk Maxwell in 1871 and Adolfo Bartoli in 1876, and proven experimentally by Lebedev in 1900[1] and by Ernest Fox Nichols and Gordon Ferrie Hull in 1901.[2] The pressure is very feeble, but can be detected by allowing the radiation to fall upon a delicately poised vane of reflective metal in a Nichols radiometer (this should not be confused with the Crookes radiometer, whose characteristic motion is not caused by radiation pressure).
"Measuring Photon Force on a Sensitive Scale" is a scientific technique used to measure the force exerted by individual photons on a sensitive scale. This technique is important in fields such as optics, quantum mechanics, and astronomy.
Photon force is typically measured using a device called an optical trap, which uses a laser beam to trap and hold a single photon. The force exerted by the trapped photon is then measured using a sensitive scale, such as a microcantilever or a laser interferometer.
Measuring photon force on a sensitive scale allows scientists to study the properties of light and its interaction with matter at a microscopic level. This technique has important applications in fields such as nanotechnology, biophysics, and quantum computing.
One of the main challenges in measuring photon force on a sensitive scale is the extremely small magnitude of the force. This requires highly sensitive equipment and careful experimental design to minimize sources of noise and error.
Measuring photon force on a sensitive scale can lead to advancements in technology, medicine, and our understanding of the universe. It can also help in the development of more efficient and precise devices, leading to potential improvements in various industries and everyday life.