In a Simple Emission Spectrograph, Excitation of the Specimen Under

question 73

Multiple Choice

In a simple emission spectrograph, excitation of the specimen under investigation is accomplished with a(n) :

• A)Electrical arc.
• B)Inductive magnetic field.
• C)Hot plasma torch.
• D)Activated prism.

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Definitions:

Stimulant

A substance that raises levels of physiological or nervous activity in the body.

Depressant

A class of drugs that reduce the functionality of the nervous system, leading to decreased arousal or stimulation in areas of the brain.

Narcotic

A class of drugs that reduce pain, induce sleep, and may alter mood or behavior; often used medicinally but can lead to dependency.

Narcotic

traditionally refers to substances that induce sleep or stupor, particularly opioids, which are also used for pain relief.