Q24 (MJ16 P13 Q25) Amplitude of Air Molecules | May/June 2016 | Cambridge A Level 9702 Physics

9702/13/M/J/16: The intensity I of sound is inversely proportional to the square of the distance x from the source of the sound. Air molecules at point P, a distance r from the source S, oscillate with amplitude 8.0 μm. Point Q is situated a distance 2r from S. What is the amplitude of oscillation of air molecules at Q?
#9702s16p13 #ASintensityP1 #ASwavesP1 #Lv3

#Waves Chapter Playlist:
https://www.youtube.com/playlist?list=PLXli3LrRvG-ZBAwUxzhBAEsw346ViDsfD

Instagram Pocket Guide (https://www.instagram.com/etphysics/)
More Resources (https://9702-physics.blogspot.com/)
Support us! (https://patreon.com/etphysics)

Tuition/Tutoring inquiries:
Email: [email protected]
Whatsapp: https://wa.me/60126679171

Recorded at MCKL #CambridgeALevelPhysics
9702_s16_qp13