A Source Emits Sound with Frequency 1000 Hz

question 37

Multiple Choice

A source emits sound with frequency 1000 Hz. A second source emitting sound simultaneously causes a 4 Hz intensity variation to appear. What are the possible frequencies of the second source?

• A)0.004 Hz and 4000 Hz
• B)250 Hz and 4000 Hz
• C)996 Hz and 4000 Hz
• D)0.004 Hz and 250 Hz
• E)996 Hz and 1004 Hz

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