through a material. The color of the objects we see in the natural world is a result of the way objects interact with light. Absorption depends on the electromagnetic frequency of the light and object’s nature of atoms.

Electromagnetic spectrum, the entire distribution of electromagnetic radiation according to frequency or wavelength. Light absorption is a process by which light is absorbed and converted into energy. In physics, absorption of electromagnetic radiation is how matter (typically electrons bound in atoms) takes up a photon's energy — and so transforms electromagnetic energy into internal energy of the absorber (for example, thermal energy). Visible light is usually defined as having wavelengths in the range of 400–700 nanometers (nm), or 4.00 × 10 −7 to 7.00 × 10 −7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). Absorption spectra are obtained by bombarding an element with light of many wavelengths and detecting which wavelengths are absorbed.

Terms used in refraction: Refracted ray is the bent ray as a result of passing from one optical medium to another.. Normal is an imaginary line perpendicular to the interface of media where the refraction occur..

When we see an object of a certain color that means that light of that color's wavelength is being reflected off the object.

Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye. This process is known as photosynthesis in plants. Transmission of light is the moving of electromagnetic waves (whether visible light, radio waves, ultraviolet, etc.) absorption The amount of seismic energy lost during transmission, by conversion to heat.

Emission spectra are obtained by heating the element to force the electrons into excited states, and then detecting which wavelengths of light are emitted as the electrons fall back down into lower energy states.

The absorption coefficient is the fractional loss of energy over a distance of one wavelength ; hence higher- frequency signals are attenuated more readily than those of lower frequencies over the same path. However, light absorption doesn’t occur exclusively in plants, but in all creatures/inorganic substances. Refraction of light is the change in direction (bending of light rays) when it passes from one optically transparent medium to another..

Visible light is a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves.

Primary causes: photoelectric effect, Compton scattering and pair production(for photon energies above 1.022 MeV) Light travelling in transparent materials is attenuated according to: Absorption spectroscopy gives qualitative as well as quantitative information about the sample. Note: In the natural world, light can also be transmitted by an object.

A notable effect (attenuation) is to gradually reduce the intensity of light waves as they propagate through a medium.
For example, when you see a red shirt, the shirt is absorbing all the colors of light except for the red color. Light of different wavelengths looks like different colors to us. Light Color: Physics Lab ... White Light: Definition, Source & Spectrum ... Absorption of a light wave occurs through resonance. All objects have a degree of reflection and absorption. The attenuation of light refers to the reduction in it’s intensity as it travels through a medium due to absorption or scattering of photons.

When a light wave strikes an object, it can be absorbed, reflected, or refracted by the object. Atoms and molecules can be excited to high energy levels, and when they fall back to the lower levels, radiation is emitted in the form of light. When atoms are excited by high temperature, the light emission is called atomic emission.