Neco 2020 Physics Question 14
Practice objective / multiple choice question 14 from the 2020 Neco Physics examination.
A string fixed at both ends has length \(1.20\ \text{m}\) and linear mass density \(0.005\ \text{kg·m}^{-1}\). When the tension in the string is \(T\), the fundamental frequency observed is \(120\ \text{Hz}\).\n(i) Determine the tension \(T\) in newtons (to three significant figures).\n(ii) If the tension is increased by 25 %, calculate the frequency of the third harmonic (to the nearest hertz).
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About This Question
This is Neco 2020 Physics Question 14. It is one of the objective questions from the 2020 Neco Physics examination.
Difficulty level: Medium .
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