Short answerEasy1 mark
2(iii)
The displacement–time graph of a sound wave produced by a vibrating wire is shown below.
How will you adjust the tension in the wire, to reduce the length of PR?
Topic: Frequency of a stretched string
Question wording verified against source paper
Answer
Exam answer
Increase the tension in the wire.
Explanation
PR represents the time period. Increasing tension increases frequency and hence reduces the time period.
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