Igcse Model Questions Vol1 2023 Physics Question 9
Practice objective / multiple choice question 9 from the 2023 Igcse Model Questions Vol1 Physics examination.
An acoustic source emits a tone of frequency \(f = 500\ \text{Hz}\). The source moves directly towards a stationary observer at a speed of \(10\ \text{m s}^{-1}\). The speed of sound in air is \(340\ \text{m s}^{-1}\). (a) What frequency does the observer initially hear? (b) If the observer then starts moving directly away from the source at \(5\ \text{m s}^{-1}\) while the source continues its motion, what frequency does the observer hear now? Give your answers to the nearest whole hertz.
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About This Question
This is Igcse Model Questions Vol1 2023 Physics Question 9. It is one of the objective questions from the 2023 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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