A Guitar String Is Supposed to Be Played with a Fundamental

question 24

Multiple Choice

A guitar string is supposed to be played with a fundamental frequency of 880 Hz. If it is determined to have, instead, a fundamental frequency of 882 Hz, by what amount (as a percentage) must the tension in the string be changed in order that the fundamental frequency be restored to 880 Hz?

• A) −0.45%
• B) +0.45%
• C) −0.11%
• D) −0.23%

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Definitions:

Diels-Alder

A [4+2] cycloaddition reaction between a conjugated diene and a dienophile forming six-membered rings.

Diels-Alder

A chemical reaction between a conjugated diene and a substituted alkene (dienophile) to form a cyclic compound.

Reactivity

The tendency of a chemical substance to undergo a chemical reaction either by itself or with other materials.

Diene

Organic compounds containing two double bonds, often involved in polymerization and other chemical reactions.