A Metastable State Is Important for the Generation of a Laser

question 8

Multiple Choice

A metastable state is important for the generation of a laser beam because it assures that:

• A)spontaneous emission does not occur more often than stimulated emission
• B)photons do not split too rapidly
• C)more photons are emitted than are absorbed
• D)photons do not collide with each other
• E)photons do not make upward transitions

---

Definitions:

Latin Word

A word from Latin, an ancient language that has influenced many modern languages, including English, Spanish, and French.

Neuron

A nerve cell that transmits information through electrical and chemical signals, playing a critical role in the functioning of the nervous system.

Excitatory Neurotransmitters

Chemical substances that promote the firing of neurons, facilitating communication within the brain and nervous system.

Inhibitory Neurotransmitters

Chemicals released by neurons in the brain that serve to inhibit or prevent neural signals, reducing neuron activity.