A Photocathode Is a Device That Emits

question 10

Multiple Choice

A photocathode is a device that emits

• A)light photons.
• B)x-ray photons.
• C)electrons.
• D)all of the above.

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Definitions:

Fluidotherapy

A technique for stimulating healing, particularly in the hands and feet, by placing the affected body part in a container of glass beads that are heated and agitated with hot air.

Whirlpool

A rapidly rotating mass of water in a river or sea into which objects may be drawn, typically caused by the meeting of conflicting currents.

Thermotherapy

The application of heat to the body to treat a disorder or injury.

Muscle Spasms

Sudden, involuntary contractions of a muscle or group of muscles, often causing pain or discomfort.