An Electron Vibrating to and Fro 1000 Times Per Second

question 21

Multiple Choice

An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a

• A)period of 1000 s.
• B)speed of 1000 m/s.
• C)wavelength of 1000 m.
• D)frequency of 1000 Hz.

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Definitions:

Kilograms

A unit of mass in the metric system equal to 1,000 grams.

Grams

A mass measurement unit representing 0.001 of a kilogram.

Pounds

A unit of weight commonly used in the United States, equal to 0.453592 kilograms.

Kg

A unit of mass equal to 1,000 grams or approximately 2.20462 pounds, used in the metric system.