7.2a Ex2 MJ20 P12 Q23 CRO Readings | AS Waves | Cambridge A Level 9702 Physics

Example 2 - 9702/12/M/J/20: A microphone connected to the Y-plates of a cathode-ray oscilloscope (CRO) is placed in front of a loudspeaker. The trace on the screen of the CRO is shown. The time-base setting is 0.5 ms cm^–1 and the Y-plate sensitivity is 0.2 mV cm^–1. What is the frequency of the sound from the loudspeaker and what is the amplitude of the trace on the CRO? #9702s20p12 #AScroP1 #lv1 AS #Waves Playlist:    • Ch7 Waves | CAIE 9702 AS Physics   MJ20 Physics Paper 1 Full Discussion Playlist:    • 9702 MJ20 Papers CAIE Physics   Instagram Pocket Guide (  / etphysics  ) More Resources (https://9702-physics.blogspot.com/) Support us! (  / etphysics  ) Tuition/Tutoring inquiries: Email: [email protected] Whatsapp: https://wa.me/60126679171 9702_s20_qp12 #CambridgeALevelPhysics