Light is absorbed 6. Light is a form of energy 5- Name the different forms of electromagnetic radiation from the longest wavelength to the shortest. 6- Name visible light’s spectral colors from longest wavelength to shortest
A numerical aperture (NA) mismatch occurs when the NA of one optical fiber is different from the NA of the other optical fiber. If the NA of the transmitting fiber is larger than the NA of the receiving optical fiber, a loss may occur. However, a loss will not occur if the NA of the transmitting optical fiber is less than the NA receiving optical fiber. NA mismatch loss is typically only a concern with multimode optical fiber. To avoid this mismatch make sure you are using the proper lengths of cable, accounting for the
(violet) ________________17. Which would have the longer wavelength, a photon with energy of 4.59 X 10-19 J or a photon with energy of 3.01 X 10-19 J? (3.01 X 10-19 J; less energy means longer
Fiber Optic cabling is the other type of cabling solution we talked about. Fiber optics uses a glass or plastic core to transmit light between each connection. Because we are using light instead of an electrical current, fiber is immune electromagnetic to interference. Fiber is also able to send data at faster speeds and longer distances than copper cabling. Fiber is harder to work with and usually needs a specialized technician to install the connections.
They are spectral efficiency which identifies a communication system’s ability to achieve a given data rate within a given bandwidth. Next is power efficiency which identifies a communication system’s ability to preserve the accuracy of information in relation to the amount of power needed to transmit signals. And lastly system complexity which is performance factor that describe the ease and cost of designing, implementing, and operating the equipment used in the communication system. Modulations | Spectral Efficiency | Power Efficiency | System Complexity | AM | Less bandwidth than FM and PM | Less efficient than FM and PMMore prone to noise than FM and PM | Let complex than FM and PM | FM | More bandwidth than AM | More power efficient AMMore noise resistant than AM but less than noise resistant than PM | More complex than AM but less complex than PM | PM | More bandwidth than AM | More power efficient than AMMore noise resistant than AM and FM | More complex than AM and FM
The trichromatic theory has short (blue), medium (green) and long (red) wavelength. Each cone responds to a broad range of wavelengths. The ratio of the activity is across three types of cones and the more intense the light it increases the brightness of color. Opponent theory the brain perceives color on a continuum from red to green and also from yellow to blue. The mechanism for this theory is a bipolar cell excited by a set of wavelengths.
The bulbs create less heat during use, which can lead to lower cooling costs and its green friendly, decreases amount of energy used by 5%. Laser Transmitter Laser transmitter have a much smaller and tighter light input and can be easily coupled to single mode fibers, this makes the laser transmitter perfect for longer distances and high speed links. Laser has a high bandwidth capability some are used up to 10GHz or 10Gbps this makes Laser transmitters more expensive. Laser Transmitters have a narrow spectral output that suffers very little chromatic dispersion. Laser Transmitters avoid interference because the frequencies between the lasers have narrow beams that are less likely to have significant side lobes that could introduce interference.
As a reverse DC voltage is applied across the diode, its capacitance varies. The higher the voltage, the less the capacitance. This is due to depletion layers of the diode junction, but we wont get into details here. This variable capacitor in conjunction with the stub, which is actually an inductor (coil) is the basis of our voltage controlled oscillator! As the voltage increases across D5, the frequency of oscillation increases.
The static magnetic field exerts a magnetic force that can dislodge the pacemaker leads. On a brighter note the more modern up to date pacemakers are smaller and have less moving parts. They have leads that are less susceptible to the magnetic force and have a lower risk factor of being moved. (Ahmed, et al., 2013) The radiofrequency field effects the pacemaker differently than the static magnetic field. It can actually heat the lead used in the older models.
As the solvent moves up the paper, it carries along any substances dissolved in it, which are the pigments. The heavier the pigments the slower they move and they do not travel as far. Going in order from the heaviest to the lightest: Chlorophyll b, Chlorophyll a, Xanthophylls, and Carotene, which means that the lighter the pigment the better the substance is in dissolving in solvents. Photosynthesis