Gce Model Questions Vol1 2017 Physics Question 34
Practice objective / multiple choice question 34 from the 2017 Gce Model Questions Vol1 Physics examination.
A source emits sound of frequency \( f_s = 500 \;\text{Hz} \) in air where the speed of sound is \( v = 340 \;\text{m s}^{-1} \). The source moves directly towards a stationary observer with speed \( v_s = 30 \;\text{m s}^{-1} \). At the same time the observer moves directly away from the source with speed \( v_o = 20 \;\text{m s}^{-1} \). (i) Determine the frequency heard by the observer. (ii) If the observer also hears beats of frequency \(5 \;\text{Hz}\) when a second source of constant frequency \( f_2 \) is present, find the possible values of \( f_2 \).
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About This Question
This is Gce Model Questions Vol1 2017 Physics Question 34. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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