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A metal panel is driven to vibrate at different frequencies - AQA - A-Level Physics - Question 32 - 2019 - Paper 1
Question 32
A metal panel is driven to vibrate at different frequencies. The amplitude of the vibration is measured at each frequency. The graph shows the variation of amplitude... show full transcript
Worked Solution & Example Answer:A metal panel is driven to vibrate at different frequencies - AQA - A-Level Physics - Question 32 - 2019 - Paper 1
Step 1
Which graph on the opposite page shows the variation of a with frequency with increased damping?
Answer
When damping is increased, the amplitude of vibration at the resonant frequency typically decreases and the peak becomes broader. Among the options provided, the graph that illustrates a decreased peak amplitude and a wider shape represents this increase in damping. Therefore, the correct answer is Graph D.