Gce Model Questions Vol1 2017 Physics Question 8
Practice objective / multiple choice question 8 from the 2017 Gce Model Questions Vol1 Physics examination.
A police car equipped with a siren of frequency \(f = 800\,\text{Hz}\) moves directly towards a stationary observer. The temperature of the air is \(25^{\circ}\text{C}\). The observer measures the frequency of the siren as \(880\,\text{Hz}\).\n\n(i) Calculate the speed of the police car (in m\,s^{-1}, to one decimal place).\n\n(ii) If the air temperature rises to \(35^{\circ}\text{C}\) while the car continues at the same speed, what frequency will the observer now hear? Give your answer to one decimal place in hertz.
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About This Question
This is Gce Model Questions Vol1 2017 Physics Question 8. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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