Gce Model Questions Vol1 2024 Physics Question 14
Practice objective / multiple choice question 14 from the 2024 Gce Model Questions Vol1 Physics examination.
A source emits sound of frequency \(f = 500\ \text{Hz}\) in air at an initial temperature of \(20^{\circ}\text{C}\). An observer moves directly towards the source with speed \(v_o = 10\ \text{m s}^{-1}\). During the 5‑second observation the air temperature rises uniformly to \(30^{\circ}\text{C}\). The speed of sound in air varies with temperature as \(v = 331 + 0.6\,T\) (with \(v\) in \(\text{m s}^{-1}\) and \(T\) in \(^{\circ}\text{C}\)). Assuming the temperature change is linear, find the frequency heard by the observer at the end of the 5 s period. Give your answer to the nearest hertz.
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About This Question
This is Gce Model Questions Vol1 2024 Physics Question 14. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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