H2P-695
Energy transfer by waves
H2 Physics · JC 2 · Medium · Energy transfer by waves
A loudspeaker emits sound of wavelength 0.80 m in air. A reflecting wall is placed facing the loudspeaker, forming a stationary wave between them. A microphone is moved in a straight line from one displacement node to the fourth displacement node further from the loudspeaker. The distance moved by the microphone is measured. Using the properties of stationary waves, calculate this distance.
- 1.6 m
- 0.80 m
- 0.40 m
- 3.2 m
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