The Amplitude of the Electric Field Component of an Electromagnetic

question 32

Multiple Choice

The amplitude of the electric field component of an electromagnetic wave is increased from E to 3E. What is the corresponding change in the intensity of the wave?

• A)The intensity is unchanged by the increase in E.
• B)The intensity increases by a factor of nine.
• C)The intensity increases by a factor of three.
• D)The intensity decreases by a factor of three.
• E)The intensity decreases by a factor of nine.

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Definitions:

Boiling Point

When a liquid's vapor pressure is equal to the surrounding atmospheric pressure, resulting in its conversion to vapor.

Nucleophile

A chemical entity that provides a pair of electrons to an electrophile, thus creating a chemical bond during a reaction.

NaCN

Sodium cyanide, a highly toxic chemical compound used in the extraction of gold and silver from mineral ores.

Bromides

Ionic compounds that contain a bromine ion (Br-) combined with another element or radical.