Gce Model Questions Vol1 2021 Physics Question 2
Practice objective / multiple choice question 2 from the 2021 Gce Model Questions Vol1 Physics examination.
A string fixed at both ends has a linear mass density \(\mu\) and is under tension \(T\). Its fundamental frequency is given by \(f = \frac{1}{2L}\sqrt{\frac{T}{\mu}}\). Initially the string has tension \(T_{1}\) and length \(L_{1}\) and vibrates at 120 Hz. The tension is increased by 20 % and the length is shortened by 10 % (\(\mu\) remains unchanged). What is the new fundamental frequency? Give your answer in hertz, rounded to the nearest whole number.
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About This Question
This is Gce Model Questions Vol1 2021 Physics Question 2. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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