What is the difference between spontaneous and stimulated emission?
Spontaneous Emission: An atom emits a photon randomly. Stimulated Emission: An incoming photon triggers an atom to emit an identical photon.
What is the difference between photon absorption and emission?
Absorption: Atom gains energy, electron jumps to higher level. Emission: Atom loses energy, electron drops to lower level.
What is a wave function (ฮจ)?
A mathematical function that describes a particle's quantum state, varying in space and time.
What is probability density?
The square of the absolute value of the wave function (|ฮจ|ยฒ), representing the probability of finding a particle at a specific point.
What is the de Broglie wavelength?
The wavelength (ฮป = h/p) associated with a particle's momentum (p), connecting its wave-like behavior.
What is half-life?
The time it takes for half of a radioactive sample to decay.
What is stimulated absorption?
The process where an atom absorbs a photon of the correct energy to jump to a higher energy level.
What is spontaneous emission?
The process where an atom in an excited state spontaneously drops to a lower energy level, emitting a photon.
What is stimulated emission?
The process where an incoming photon triggers an excited atom to drop to a lower energy level, emitting an identical photon.
What is the effect of an electron transitioning between energy levels?
Emission or absorption of a photon with energy equal to the energy difference.
What is the effect of radioactive decay?
Transformation of an unstable nucleus into a more stable nucleus, accompanied by the emission of particles and energy.
What is the effect of increasing a particle's momentum on its de Broglie wavelength?
The de Broglie wavelength decreases.
What is the effect of doubling the length of the box on the energy of the ground state?
The energy of the ground state decreases.
