As a Wave Moves to the Right in an Elastic

question 28

Multiple Choice

As a wave moves to the right in an elastic rope, a sequence of pictures (1 through 6) is taken at intervals of one second. An arrow points out a particle that is attached to the rope. If the width of the picture is 8 cm, this wave has a period of

• A) 0.2 s
• B) 10 s
• C) 3 s
• D) 6 s
• E) 12 s

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Definitions:

Polygon Rule

A guideline in molecular orbital theory used to predict the ordering of energy levels in cyclic conjugated systems.

Bond Order

A measure of the number of chemical bonds between a pair of atoms, indicative of bond strength and stability.

π Molecular Orbitals

Molecular orbitals formed by the sideways overlap of p orbitals, contributing to the bonding in molecules with double or triple bonds.

KMnO₄

Potassium permanganate, a strong oxidizing agent characterized by its purple color, used in qualitative organic analysis and as a disinfectant.