A Vertical Tube One Meter Long Is Open at the Top

question 19

Multiple Choice

A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity of sound is 344 m/s, what will the fundamental resonant frequency be (in Hz) ?

• A) 3.4
• B) 172
• C) 344
• D) 1.7
• E) 688

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Definitions:

Approach/Approach Conflict

A decision-making dilemma involving two desirable options, causing psychological stress.

Lewin

Kurt Lewin, a pioneering psychologist known for his work in group dynamics, social change, and field theory.

Avoidance/Avoidance Conflict

A psychological dilemma where an individual must choose between two equally undesirable options or outcomes.

Lewin

Kurt Lewin was a pivotal figure in psychology who is often considered the father of social psychology; he introduced concepts such as field theory and the change management theory known as unfreeze-change-refreeze.