When two electrons collide, they can indeed exert repulsive forces on each other due to their like charges. However, this repulsion doesn't prevent the emission of electromagnetic radiation. Let's delve into the concept further to understand why.
Electromagnetic radiation is produced when charged particles accelerate. Acceleration refers to any change in the velocity or direction of motion of a charged particle. In the case of electrons colliding, they experience acceleration as they change their paths due to the repulsive forces between them. This acceleration of the electrons results in the emission of electromagnetic radiation.
According to classical electrodynamics, when charged particles accelerate, they generate changing electric and magnetic fields, which propagate through space as electromagnetic waves. These waves carry energy and information in the form of oscillating electric and magnetic fields perpendicular to each other. The frequency of the electromagnetic radiation depends on the acceleration of the charged particles.
During the collision, the repulsive forces between the electrons cause them to change their trajectories, and as a result, they experience acceleration. This acceleration leads to the emission of electromagnetic radiation, typically in the form of photons. These photons can have various frequencies depending on the specific conditions of the collision.
It's important to note that the repulsion between the electrons is not directly responsible for the emission of electromagnetic radiation. Instead, it provides the mechanism through which the electrons can accelerate, leading to the production of electromagnetic waves. The repulsive forces govern the interaction between the electrons, while the emission of electromagnetic radiation arises from the acceleration resulting from that interaction.
Quantum electrodynamics (QED) provides a more detailed and accurate description of the interactions between charged particles and electromagnetic radiation. However, the basic concept of acceleration and the emission of electromagnetic radiation still hold true in this framework.