An Electrical Spark, Such as Lightning, Generates Electromagnetic Radiation Over

question 132

Multiple Choice

An electrical spark, such as lightning, generates electromagnetic radiation over a wide range of wavelengths. How much longer will a pulse of radio energy take to travel between two detector stations 100 m apart than will a pulse of ultraviolet radiation from the same spark?

• A) The time will be identical because both pulses travel at the speed of light.
• B) Just a little longer because the high frequency UV radiation travels faster than the low frequency radio waves.
• C) A much shorter time because long wavelength radiation travels faster.
• D) A much longer time because radio waves have much longer wavelengths and therefore travel slower.

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Definitions:

Marginal Revenue Product

The additional revenue generated by employing one more unit of a factor of production, keeping all other factors constant.

Wage Rate

The amount of money workers are paid per unit of time, usually specified in terms of an hour, representing compensation for labor services.

Employment

The condition of having paid work or being engaged in a productive activity.

Marginal Revenue Product

The additional income produced by one more unit of input, such as labor or capital, in the production process.