An Oscillator Is Subjected to a Damping Force That Is

question 31

Multiple Choice

An oscillator is subjected to a damping force that is proportional to its velocity.A sinusoidal force is applied to it.After a long time:

• A)its amplitude is an increasing function of time
• B)its amplitude is a decreasing function of time
• C)its amplitude is constant
• D)its amplitude is a decreasing function of time only if the damping constant is large
• E)its amplitude increases over some portions of a cycle and decreases over other portions

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Definitions:

NMR

Nuclear Magnetic Resonance, a spectroscopic technique that exploits the magnetic properties of certain nuclei to determine the structure of compounds.

Molecular Formula

A notation representing the number and type of atoms in a molecule without depicting the bonds (e.g., H2O for water).

IR

Infrared spectroscopy, a technique used to identify and study chemicals through the absorption of infrared radiation, providing insights into molecular vibrations and structures.

NMR

Nuclear Magnetic Resonance, a spectroscopic technique that provides detailed information about the structure, dynamics, and environment of molecules.