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Sketch an equal loudness curve on Figure 3 showing the normal response of a healthy ear - AQA - A-Level Physics - Question 3 - 2022 - Paper 5
Question 3
Sketch an equal loudness curve on Figure 3 showing the normal response of a healthy ear. Annotate the frequency axis with an appropriate scale. Figure 3 intensity ... show full transcript
Worked Solution & Example Answer:Sketch an equal loudness curve on Figure 3 showing the normal response of a healthy ear - AQA - A-Level Physics - Question 3 - 2022 - Paper 5
Step 1
Sketch an equal loudness curve
Answer
To sketch the equal loudness curve, start by labeling the frequency axis with appropriate values: 10 Hz, 100 Hz, 1 kHz, 10 kHz, and 20 kHz. Mark the location of 3000 Hz clearly, ensuring it is the lowest point on the graph, which represents the normal ear response. Draw a U-shaped curve that reflects the intensity levels at each frequency, ensuring the lowest intensity level at 3000 Hz. Label this minimum point for clarity.