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10 questions from this quiz
The pitch becomes higher
202020 Hz
Ultrasound
Dolphins (up to 200,000200,000200,000 Hz)
The sound becomes louder
Energy carried by the wave
1,0001,0001,000-4,0004,0004,000 Hz
Infrasound
Dolphins (down to 0.250.250.25 Hz)
Oscilloscope
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