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The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states involved in laser action? (c = 2.9979 × 108 m/s,h = 6.626 × 10-34 J • s,
Talking Prohibition
A rule or policy that restricts or forbids speaking in certain situations or areas.
Negative Words
Words that convey a negative connotation, often used to express dissatisfaction, disagreement, or pessimism, and can impact the tone and reception of communication.
Business Messages
Communications conveyed within or between businesses, including memos, reports, emails, and notices, usually for formal or professional purposes.
You-viewpoint
A communication technique that focuses on the interests, needs, or benefits of the audience or recipient, emphasizing "you" rather than "I" or "we."
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