Compton Effect conceptual problem

[kraphysics]

Explain why the Compton effect provides critical evidence for the particle model of light.

I know the Compton effect proved that light has momentum but not sure how that is evidence for particle model of light. Can someone help?

 

[cupid.callin]

only particle can change state of another particle in an inertial frame... you can really move your radio with radio waves ,, can you?

 

[kraphysics]

only particle can change state of another particle in an inertial frame... you can really move your radio with radio waves ,, can you?

But it doesn't change the state. I am confused. What do you mean?

 

[cupid.callin]

It DO change the state ...
if it doesn't then ehy do you think NASA is planning to send satellites that will use photons to travel?

 

[rwisz]

The Compton effect, also known as Compton scattering, is a phenomenon in which a photon (a particle of light) collides with an electron, transferring some of its energy and changing its direction. This effect was first observed by Arthur Compton in 1923, and it provides critical evidence for the particle model of light.

One of the key principles of the particle model of light is that light behaves as a stream of discrete, indivisible particles called photons. This model was first introduced by Albert Einstein in 1905 and has been supported by numerous experiments, including the Compton effect.

In the Compton effect, the change in direction of the photon after colliding with an electron can be explained by the conservation of momentum. This principle states that the total momentum of a system remains constant unless acted upon by an external force. In the case of the Compton effect, the photon transfers some of its momentum to the electron, causing it to change direction. This change in direction and the fact that the photon has momentum are both characteristics of particles, providing evidence for the particle model of light.

Furthermore, the Compton effect also demonstrates the particle nature of light by showing that the energy of a photon is directly proportional to its frequency. This is known as the Planck-Einstein relation and is a fundamental principle in the particle model of light.

Overall, the Compton effect provides critical evidence for the particle model of light by demonstrating the momentum and energy transfer of photons during collisions, as well as their discrete and indivisible nature. This effect has been repeatedly observed and is a key piece of evidence in support of the particle model of light.