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ENERGY LEVELS
The energy levels, measured in electron volts (e.v.) in which orbiting electrons exist comply with a law of physics which states that energy can be given to electrons only in discrete amounts (quanta) which means that there are energy values that an electron cannot acquire. From this it can be deducted that there is a forbidden energy gap between each of the allowed energy bands K to O.
The width of the forbidden energy gap between the top of the valence band and the bottom of the conduction band determine the electrical conducting properties of materials.
varacter diode
Explain Newton's First Law In 1665, at the age of 23, Newton developed his famous Laws of Motion. They are commonly known as Newton's first, second and third law. Aside from th
Archimedes' principle A body which is submerged into a fluid is buoyed up through a force equal in magnitude to the weight of the fluid which is displaced, and directed upward
What are the pumping schemes? Pumping Schemes: a. Optical pumping through photons b. Electrical pumping through electric glow discharge/electric current/electron beam
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads o
what is the physical signification of packing fraction in nuclear physics?
Two moles of an ideal gas expands reversibly and isothermally to ten times its volume at 25°C. Evaluate the change in entropy during the process. ( R = 8.314 JK -1 mol -1 )
Define Gas in Harmonic Well? A classical system of N distinguishable no interacting particles of mass m is placed in a three-dimensional harmonic well: a) Discover t
WHAT IS THE FREQUENCY OF ULTRA SONICS
This spray head discharges water (density 62.4 lbm/ft ) at a rate of 4 ft /s. Assuming irrotational flow and an efflux speed of 65 ft/s in the free jet, determine what force acting
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