Light: Electromagnetic waves, the electromagnetic spectrum and …
Electromagnetic waves can be classified and arranged according to their various wavelengths/frequencies; this classification is known as the electromagnetic spectrum. The …
Stars (article) | EM radiation from the Sun | Khan Academy
We’ve seen how light is a powerful tool for gathering information about stars. Now let’s explore what astronomers have learned by analyzing the light from many stars.
Introduction to light (video) | Khan Academy
Electromagnetic rays, or electromagnetic radiation, is another term for light. Everything on the electromagnetic spectrum is light, but with different wavelengths and frequencies.
Light and photosynthetic pigments - Khan Academy
Light is a form of electromagnetic radiation, a type of energy that travels in waves. Other kinds of electromagnetic radiation that we encounter in our daily lives include radio waves, …
The electromagnetic spectrum (article) | Khan Academy
Learn about electromagnetic radiation and take a tour of the electromagnetic spectrum.
Electromagnetic waves (article) | Waves | Khan Academy
Learn about electromagnetic waves, including visible light waves. Explore the ray model and use it to model different behaviors of light.
The electromagnetic spectrum (video) | Waves | Khan Academy
Light is an electromagnetic wave. All electromagnetic waves travel at the speed of light in vacuum. The frequency of a light wave corresponds to its color. The amplitude of a light wave …
Electromagnetic waves and the electromagnetic spectrum - Khan …
Learn how electromagnetic waves are formed from changing electric and magnetic fields. Understand the electromagnetic spectrum, including different regions from visible light to …
Electromagnetic radiation | High school physics - Khan Academy
Discover how EM radiation in different bands of the EM spectrum are alike, and how they are different. Learn how visible light is only a small band of the entire EM spectrum.
Spectroscopy and the electromagnetic spectrum - Khan Academy
A diagram of the electromagnetic spectrum is shown below. Which of the following wavelength ranges is most strongly associated with electronic transitions in atoms and molecules?