Igcse Model Questions Vol1 2020 Physics Question 5
Practice objective / multiple choice question 5 from the 2020 Igcse Model Questions Vol1 Physics examination.
A police car equipped with a siren that emits a frequency of \(800\) Hz moves directly towards a stationary observer at a speed of \(30\) m s\(^{-1}\). At the same time the observer is walking away from the car at \(5\) m s\(^{-1}\). The speed of sound in air is \(340\) m s\(^{-1}\). What frequency does the observer hear? Give your answer to the nearest hertz.
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About This Question
This is Igcse Model Questions Vol1 2020 Physics Question 5. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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