Difference between revisions of "Light"
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== Optics == | == Optics == | ||
{{main|Optics}} | {{main|Optics}} | ||
| − | Etymologically, optics is the study of vision. | + | Etymologically, optics is the study of vision. Light waves are electromagnetic waves - they consist of mutually perpendicular electric fields and [[magnetic field]]s, and can travel through a vacuum. Optics is the study of electromagnetic waves in general. So it covers all waves in the [[electromagnetic spectrum]] given below: |
* [[Gamma rays]] | * [[Gamma rays]] | ||
* [[X-Rays]] | * [[X-Rays]] | ||
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* [[Radio waves]] | * [[Radio waves]] | ||
One of the most controversial questions in optics is whether light is a wave or a ray. Accordingly, there are two branches of optics, but only ray optics belongs to classical physics. Wave optics are a topic of modern physics. In ray, optics covers topics such as reflection and refraction and the dispersion of white light into its constituent colors. | One of the most controversial questions in optics is whether light is a wave or a ray. Accordingly, there are two branches of optics, but only ray optics belongs to classical physics. Wave optics are a topic of modern physics. In ray, optics covers topics such as reflection and refraction and the dispersion of white light into its constituent colors. | ||
| + | == See also == | ||
| + | * [[Physics books]] | ||
| + | * [[Physics competitions]] | ||
| + | * [[Physics scholarships]] | ||
| + | * [[Physics summer programs]] | ||
| + | * [[Gamma rays]] | ||
| + | * [[X-Rays]] | ||
| + | * [[Ultraviolet rays]] | ||
| + | * [[Visible light]] | ||
| + | * [[Infrared Rays]] | ||
| + | * [[Microwaves]] | ||
| + | * [[Radio waves]] | ||
| + | * [[Electricity]] | ||
| + | * [[magnetism]] | ||
| + | * [[Classical Mechanics]] | ||
| + | * [[Statistical Mechanics]] | ||
| + | * [[Acoustics]] | ||
| + | * [[Optics]] | ||
| + | * [[Thermodynamics]] | ||
| + | * [[Electromagnetism]] | ||
| + | * [[Relativity]] | ||
| + | * [[Quantum Mechanics]] | ||
| + | * [[Nuclear Physics]] | ||
| + | * [[Condensed Matter Physics]] | ||
| + | * [[Particle Physics]] | ||
| + | * [[Astrophysics]] | ||
| + | * [[Cosmology]] | ||
| + | [[Category:Physics]] | ||
Latest revision as of 11:52, 8 July 2019
Overview
Light is dual-natured because it is a wave that is made out of particles called photons. Photons are the smallest particles humans have ever known
Optics
- Main article: Optics
Etymologically, optics is the study of vision. Light waves are electromagnetic waves - they consist of mutually perpendicular electric fields and magnetic fields, and can travel through a vacuum. Optics is the study of electromagnetic waves in general. So it covers all waves in the electromagnetic spectrum given below:
One of the most controversial questions in optics is whether light is a wave or a ray. Accordingly, there are two branches of optics, but only ray optics belongs to classical physics. Wave optics are a topic of modern physics. In ray, optics covers topics such as reflection and refraction and the dispersion of white light into its constituent colors.
See also
- Physics books
- Physics competitions
- Physics scholarships
- Physics summer programs
- Gamma rays
- X-Rays
- Ultraviolet rays
- Visible light
- Infrared Rays
- Microwaves
- Radio waves
- Electricity
- magnetism
- Classical Mechanics
- Statistical Mechanics
- Acoustics
- Optics
- Thermodynamics
- Electromagnetism
- Relativity
- Quantum Mechanics
- Nuclear Physics
- Condensed Matter Physics
- Particle Physics
- Astrophysics
- Cosmology
