​A Device Emits Light at 219

question 55

Multiple Choice

​A device emits light at 219.4 nm.What is the frequency of this radiation?

• A) ​1.37 × 10^-3 Hz
• B) 3.31 × 10²⁶ Hz
• C) 1.37 × 10¹⁵ Hz
• D) 9.07 × 10^-37 Hz
• E) 9.07 × 10^-19 Hz

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Definitions:

Intention Level

The degree of determination or resolve one has in aiming to accomplish a specific goal or task.

Retention

The ability to keep or retain information, employees, or students over time.

Recall

The cognitive process of retrieving information from memory without the aid of cues.

Retain

The ability to keep or hold on to information, knowledge, or possessions.