Neco Model Questions Vol1 2024 Physics Question 47
Practice objective / multiple choice question 47 from the 2024 Neco Model Questions Vol1 Physics examination.
A string of length \(L=1.20\) m is fixed at both ends. When the tension is \(T=80\) N, the string vibrates in its fundamental mode with frequency \(f_{0}=120\) Hz. The linear mass density of the string is uniform. The string is then heated uniformly so that its length increases by \(2\%\) while the tension remains unchanged.\\ (a) Determine the new fundamental frequency of the heated string.\\ (b) If the original and the heated strings are sounded together, what beat frequency is heard?
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About This Question
This is Neco Model Questions Vol1 2024 Physics Question 47. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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