Jet takeoff sound has waves with the greatest amplitude.
Option: B.
Explanation:
The sound intensity is measured in decibels and sound intensity is directly proportional to Amplitude.
Thus if the decibel increases, then the amplitude will also get increased.
From the given graph we have the respective data
Decibel of Jet Takeoff = 100 dB.
Decibel of Light Whisper = 10 dB.
Decibel of Noisy Classroom = 60 dB.
Decibel of Loud Music = 80 dB.
Thus among these Jet takeoff has the highest decibel amount.
So the amplitude of the Jet Takeoff's Sound wave will be the greatest among other three sound waves.