Relationship between energy and light

The Relationship between Energy and Mass

In high school, doing modern physics, and was struck by a thought about light, energy of a photon and the "speed limit" of relativity. I'm probably. Einstein's photons of light were individual packets of energy having many of the characteristics of particles. Recall that the collision of an electron (a particle) with . Photon energy is the energy carried by a single photon. The amount of energy is directly Photon energy is solely a function of the photon's wavelength. In other words, two photons of light with the same color and therefore, same frequency, will have the same This equation is known as the Planck-Einstein relation.

Albert Einstein and Niels Bohr who were great friends discussed these issues and more often over a period of many years, especially in the late 's and early 's. Their discussions are still important enough to merit historical study today. Every year, several books are published which delve into one or more of the implications of "wave-particle duality.

Unit 6 - Relationship Between Frequency, Energy & Wavelength

As one value say the wavelength goes up, the other value the frequency must go down. Because the product of the two must always equal the same value, c, which is a constant. As the frequency increases, so does E. Because h remains constant. I left a couple guard digits in the answer. Also, notice that the wavelength is not in scientific notation. This is because I made a silent conversion from nm to m.

I didn't bother to convert it because it wasn't needed. Otherwise, the propagated waves would be out of phase, resulting in a net decrease in amplitude and causing destructive interference. Higher energy levels would have successively higher values of n with a corresponding number of nodes.

Standing waves are often observed on rivers, reservoirs, ponds, and lakes when seismic waves from an earthquake travel through the area.

The waves are called seismic seiches, a term first used in when lake levels in England and Norway oscillated from side to side as a result of the Assam earthquake of in Tibet.

They were first described in the Proceedings of the Royal Society in when they were seen in English harbors and ponds after a large earthquake in Lisbon, Portugal. Seismic seiches were also observed in many places in North America after the Alaska earthquake of March 28, Those occurring in western reservoirs lasted for two hours or longer, and amplitudes reached as high as nearly 6 ft along the Gulf Coast.

The relationship between light, energy and relativity | Physics Forums

And equivalences and symmetries are important phenomena in SpaceTime, but intensity and amplitude doesn't apply to a single photon at all. If you look at Maxwell's equations light becomes a electromagnetic radiation consisting of oscillations waves in the electric and magnetic fields, 'perpendicular' at a right angle to each other.

Waves describe polarization, refraction, interference quenching and reinforcing itself, via two waves interfering etc, but they do not tell you about photons. And that's where 'equivalences' becomes important. And so this, to me that is, is all about trying to find a common ground for the concept of photon fitting the concept of waves.

This is a good description of that. The intensity of the beam is proportional to the number of photons.

Light: Electromagnetic waves, the electromagnetic spectrum and photons

The polarization of light that is explained by Maxwell is related to the quantum-mechanical concept of spin. You can see the photon as a little top spinning around an axis that coincides with the direction of propagation.

• The relationship between light, energy and relativity
• Photoelectric effect
• Photon energy

But while in classical mechanics an object can spin only in one direction at a time, in quantum mechanics you have the paradoxical and counter-intuitive fact that an object can spin lets say clockwise and counterclockwise at the same time.

It is like having two "realities" existing at the same time.