Which of the Following Is Essential for Laser Action to Occur

question 3

Multiple Choice

Which of the following is essential for laser action to occur between two energy levels of an atom?

• A)the lower level is metastable
• B)the upper level is metastable
• C)the lower level is the ground state
• D)the are more atoms in the lower level than in the upper level
• E)the lasing material is a gas

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Definitions:

ABC Method

A prioritization technique where tasks are categorized into three groups (A, B, and C) according to their importance and urgency.

Innovative Thinker

An individual who introduces new ideas and approaches, demonstrating creativity and original thinking in problem-solving.

Four-Temperament Profile

A theory suggesting that there are four basic personality types, often used in psychology to categorize human behavior.

Director

A person who is in charge of an organization, department, or production, guiding how a vision is realized.