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100
apply quantum theory to, especially form into quanta, in particular restrict the number of possible values of (a quantity) or states of (a system) so that certain variables can assume only certain discrete magnitudes.
What is Quantized
100
the observation that many metals emit electrons when light shines upon them.
What is Photoelectric Effect
100
a boundary in a system's frequency response at which energy flowing through the system begins to be reduced (attenuated or reflected) rather than passing through.
What is Cutoff frequency
100
The position and momentum of a particle cannot be simultaneously measured with arbitrarily high precision. There is a minimum for the product of the uncertainties of these two measurements. There is likewise a minimum for the product of the uncertainties of the energy and time.
What is Heisenberg uncertainty principle for momentum and position?
200
Energy can only change in discrete steps, not continuously.
What is Quantized light
200
the minimum quantity of energy that is required to remove an electron to infinity from the surface of a given solid, usually a metal.
What is Work function
200
The wave length associated with a particle that has momentum
What is De Broglie wavelength
200
Energy and time are represented by some operators and t, respectively. These operators do not commute, indicating that energy and time cannot be measured simultaneously.
What is Heisenberg uncertainty principle for energy and time?
300
Rather than continuous waves, light was coming in packets of energy
What is Quantized light
300
the black body radiation curve for different temperatures peaks at a wavelength inversely proportional to the temperature.
What is Wien’s Displacement Law
300
The concept that every elementary particle or quantic entity may be partly described in terms not only of particles, but also of waves. It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behavior of quantum-scale objects.
What is Wave particle duality
300
When light energy strikes the solar cell, electrons are knocked loose from the atoms in the semiconductor material. If electrical conductors are attached to the positive and negative sides, forming an electrical circuit, the electrons can be captured in the form of an electric current -- that is, electricity.
What is Solar installation
400
a theoretically ideal radiator and absorber of energy at all electromagnetic wavelength
What is Black body
400
6.62607004 × 10^-34 m2 kg / s a physical constant that is the quantum of action, central in quantum mechanics.
What is Planck's constant, h
400
the uncertainty principle dictates that, at the miniscule level of quantum mechanics, it becomes impossible to measure a particle's exact location with any degree of precision.
What is Heisenberg uncertainty principle
500
a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.
What is Photon
500
Where f is the frequency of the photon, E2, E1 are the energy levels (E2>E1) and h is the Planck's constant (h=6.63*10^-34 J.s)
What is Energy of photon of frequency f
500
refers to the quantum mechanical phenomenon where a particle tunnels through a barrier that it classically could not surmount.
What is Quantum tunneling
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