properties depending upon light

Characteristics of Laser

Hence, the light waves of ordinary light sources have many wavelengths or colors. Therefore, ordinary light is a mixture of waves having different frequencies or wavelengths. On the other hand, in laser, all the emitted photons have the same energy, frequency, or wavelength. Get price

Gemstones That Change Color in Different Light

Color change gems show different colors when viewed under different light sources, such as sunlight and indoor light.The alexandrite variety displays a color change (alexandrite effect) dependent upon the nature of ambient lighting. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Get price

How Different Colors of Light Affect Plant Growth

Oct 17, 2019This process is called photosynthesis. Water, oxygen, and sunlight make the holy trinity for plants.Visible light as we perceive it behaves as a wave. As such, it displays different properties depending on its wavelength. For example, a source of light with a wavelength of around 650 nm will be detected as having a red color. Get price

The Nature of Light – The Physics Hypertextbook

The speed of light depends upon the medium through which it travels.The speed of anything with mass is always less than the speed of light in a vacuum. other characteristics. The amplitude of a light wave is related to its intensity. Intensity is the absolute measure of a light wave's power density. Get price

Propagation of light along a fiber

The concept of light propagation, the transmission of light along an optical fiber, can be described by two theories. According to the first theory, light is described as a simple ray. This theory is the ray theory, or geometrical optics, approach. The advantage of the ray approach is that you get a clearer picture of the Get price

Refractive errors and refraction: How the eye sees

A light ray can be deflected, reflected, bent or absorbed, depending on the different substances it encounters. When light travels through water or a lens, for example, its path is bent or refracted. Certain eye structures have refractive properties similar to water or lenses and can bend light rays into a precise point of focus essential for Get price

Physics Tutorial: Reflection, Refraction, and Diffraction

In Lesson 2, it was mentioned that the speed of a wave is dependent upon the properties of the medium through which the waves travel. So if the medium (and its properties) is changed, the speed of the waves is changed. The most significant property of water that would affect the speed of waves traveling on its surface is the depth of the water. Get price

Physics Tutorial: Optical Density and Light Speed

Optical Density and the Index of Refraction. Like any wave, the speed of a light wave is dependent upon the properties of the medium. In the case of an electromagnetic wave, the speed of the wave depends upon the optical density of that material. The optical density of a Get price

Gemstones That Change Color in Different Light

Color change gems show different colors when viewed under different light sources, such as sunlight and indoor light.The alexandrite variety displays a color change (alexandrite effect) dependent upon the nature of ambient lighting. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Get price

Light Switches That Know You're There

Jan 29, 2020They are priced from about $15 to $65, depending upon the sophistication of the devices. Most quality switches are less than $25. High-end models, which have two infrared (PIR) sensors to respond to both movement and ambient light cost upwards of $40. For information on wiring switches, see How to Install a Light Switch. Get price

The Properties of Chemical Substances

Intensive properties, however, don't depend on the amount of matter present.Color is an intensive property. A large chunk of gold, for example, is the same color as a small chunk of gold. The mass and volume of these two chunks are different (extensive properties), but the color is the same. Get price

Why materials are used for particular purposes

Properties of a material refer to the distinctive attributes of the material. Properties can be observed with the naked eye, by using a magnifying lens or microscope, or by testing and measuring. They are inherent to materials but can be changed in a variety of ways — for example, by combining materials Get price

Light Dependent Resistor (LDR)

Jul 18, 2019Light dependent resistors have a low cost and simple structure. These resistors are frequently used as light sensors. These resistors are mainly used when there is a need to sense the absence and presence of the light such as burglar alarm circuits, alarm clock, light intensity meters, etc. LDR resistors mainly involves in various electrical Get price

Characteristics of a Solar Cell and Parameters of a Solar

May 15, 2018Solar cell is the basic unit of solar energy generation system where electrical energy is extracted directly from light energy without any intermediate process. The working of a solar cell solely depends upon its photovoltaic effect hence a solar cell also known as photovoltaic cell.A solar cell is basically a semiconductor device. The solar cell produce electricity while light strikes on it Get price

Properties of Light

Properties of Light and Examination of Isotropic Substances. The optical properties of crystals are, next to x-ray diffraction and direct chemical analyses, the most reliable properties available to distinguish and identify minerals. The optical properties depend on the manner that visible light is transmitted through the crystal, and thus are dependent on crystal structure, crystal symmetry, and chemical composition of the mineral. Get price

Reflection of Light

The amount of light reflected by an object, and how it is reflected, is highly dependent upon the degree of smoothness or texture of the surface. When surface imperfections are smaller than the wavelength of the incident light (as in the case of a mirror), virtually all of the light is reflected equally. Get price

Obsidian: Igneous Rock

Rarely, obsidian has an iridescent or metallic sheen caused by light reflecting from minute inclusions of mineral crystals, rock debris, or gas. These colored specimens are known as rainbow obsidian, golden obsidian, or silver obsidian, depending upon the color of the sheen or iridescence. Get price

Does the Photoelectric Effect Depend on the Properties of

Apr 16, 2010Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect. In an experiment, the intensity of the incident light and the temperature of the metal are held constant. Assuming that the initial light incident on the metal surface causes electrons to be ejected from the metal, what happens if the frequency of the incident light is increased? Get price

The Basics: Polymer Definition and Properties

The majority of manufactured polymers are thermoplastic, meaning that once the polymer is formed it can be heated and reformed over and over again. This property allows for easy processing and facilitates recycling. The other group, the thermosets, cannot be remelted. Get price

Fluorescence Excitation and Emission Fundamentals

categories,fluorescence and phosphorescence, depending upon the electronic configuration of the excited state and the emission pathway. Fluorescence is the property of some atoms and molecules to absorb light at a particular wavelength and to subsequently emit light of longer wavelength after a brief interval, termed the fluorescence lifetime. Get price

Toyota Dashboard Lights Symbols Guide

The indicator light stops flashing after the registered key has been inserted into the engine switch to indicate that the system has been canceled. Slip Indicator {{singleLineArray[10]}} Depending on the vehicle, a buzzer (intermittent) may sound to indicate that VSC is operating. SRS Warning Light {{singleLineArray[11]}} Have the vehicle Get price

Characteristics of a Solar Cell and Parameters of a Solar

May 15, 2018Solar cell is the basic unit of solar energy generation system where electrical energy is extracted directly from light energy without any intermediate process. The working of a solar cell solely depends upon its photovoltaic effect hence a solar cell also known as photovoltaic cell.A solar cell is basically a semiconductor device. The solar cell produce electricity while light strikes on it Get price

2.3 Atomic Structure and Symbolism – Chemistry

This result demonstrates that we may find slight differences in the natural abundance of isotopes, depending on their origin.) Check Your Learning A sample of magnesium is found to contain 78.70% of 24 Mg atoms (mass 23.98 amu), 10.13% of 25 Mg atoms (mass 24.99 amu), and 11.17% of 26 Mg atoms (mass 25.98 amu). Get price

Gemstones That Change Color in Different Light

Color change gems show different colors when viewed under different light sources, such as sunlight and indoor light.The alexandrite variety displays a color change (alexandrite effect) dependent upon the nature of ambient lighting. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Get price

Light and Shadow

Mar 20, 2019Shadows are formed because light rays travels in a straight line, and they cannot bend round the corners of the objects. The shape of the shadow is also the same as the shape of the object because light travels in a straight line path. When a is on the ground, we can see its shadow which is formed by sunlight. Get price