Suppose You Electrically Charge a Comb by Running It Through

question 56

Multiple Choice

Suppose you electrically charge a comb by running it through your hair. If you then shake this comb back and forth one time every second, you will create

• A) an electromagnetic field that vibrates at a frequency of 1 Hz, but no electromagnetic wave is created.
• B) a sound wave having a wavelength of 300,000 km and a speed of 300,000 km/s.
• C) a sound wave having a frequency of 1 Hz and a speed of 300,000 km/s.
• D) the tooth fairy.
• E) an electromagnetic wave having a frequency of 1 Hz and a speed of 300,000 km/s.

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