A Cellular Telephone Transmits Electromagnetic Waves at a Frequency of 835

question 22

Multiple Choice

A cellular telephone transmits electromagnetic waves at a frequency of 835 MHz. What is the wavelength of these waves?

• A)0.0146 m
• B)0.359 m
• C)0.842 m
• D)1.62 m
• E)2.47 m

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Definitions:

Chemical Unit

A specific quantity of a substance used in chemistry for measurement, such as a mole.

Atom

The smallest quantity of an element that retains the chemical properties of that element.

Molecule

The smallest particle of a covalently bonded element or compound; two or more atoms joined by covalent bonds.

Homeostatic Mechanism

Biological processes that maintain the internal conditions of an organism within narrow limits despite changes in external environments.