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A tube open at one end and closed at the other produces sound of fundamental frequency of 350 Hz.If you now open the closed end,the fundamental frequency becomes 175 Hz.
Differentiates
The process or factors that distinguish or set apart one entity or concept from others.
Sign
An object, quality, or event whose presence or occurrence indicates the probable presence or occurrence of something else.
Two-way Communication
Two-way Communication is the interactive process of exchanging information, ideas, or messages between individuals or groups, allowing for feedback and dialogue.
Brevity
The quality of being concise and exact in the use and choice of words in speech or writing.
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