Question

Why de Broglie waves are non-electromagnetic?

Answer 1

Hint: EM waves are another name for electromagnetic waves. When an electric field interacts with a magnetic field, electromagnetic waves are created. These electromagnetic waves make up electromagnetic radiations. It is also possible to say that electromagnetic waves are made up of magnetic and electric fields that are oscillating. Maxwell's equations, the fundamental equations of electrodynamics, have an answer in electromagnetic waves.

Complete answer:
The motion of atoms, molecules, and other fundamental particles like as the electron, proton, and neutron causes matter waves, which are characterised by moving particles. These waves are referred to as matter waves since matter is its primary component.

According to De-Broglie, every moving particle has a few corresponding waves. Additionally, as all matter is made up of particles, it is argued that all matter exhibits wave-like behaviour.

There are a few traits of matter waves, including the following:
1. Because matter waves are not dependent on a particle's charge, they are not electromagnetic in nature.
2. The particle's weight affects the De-Broglie wavelength, hence the wavelength will increase as the particle weight decreases.
3. The particle's nature has no bearing on the wavelength.
4. If the particle is travelling faster, the wavelength will be shorter.
5. The wavelength, according to Broglie, is as follows:
$\lambda = \dfrac {Plank’s~contant}{momentum}$
$\lambda = \dfrac{h}{p}$
where, $h = 6.63 \times {10^{34}}$Js

Additional information:
Difference between matter wave and electromagnetic waves
1. The presence of the field component is the primary distinction between electromagnetic and matter waves. As the matter wave lacks the field components inherent in electromagnetic waves,
2. In open space, electromagnetic waves transport electromagnetic radiant energy. Energy propagates while matter waves convey the constituent particles.
3. The source of electromagnetic waves is in space; for instance, accelerating charges emit electromagnetic waves. Regarding the fundamental material particles, such as electrons, protons, and neutrons as well as atoms and molecules, matter waves demonstrate their existence.
4. While the energy of a matter wave is non-quantized, the energy of an electromagnetic wave is quantized.
5. An electromagnetic wave can easily go from one place to another by propagating through a vacuum. On the other hand, since a suitable medium is needed for matter waves to flow through, it is not conceivable for matter waves to propagate across free space.
6. Compared to matter waves, the electromagnetic wave's wavelength is easier to measure.
7. The two primary examples of electromagnetic waves and matter waves, respectively, are radio waves and electron beams.

Note: Newton’s laws of motion and the universal laws of motion. Our whole universe is obeying these laws. We must know the concept of newton’s laws and also must be aware that the Galileo was the one who first presented them.