Gce Model Questions Vol1 2018 Physics Question 27
Practice objective / multiple choice question 27 from the 2018 Gce Model Questions Vol1 Physics examination.
A sound source of frequency \(f_s = 1000\ \text{Hz}\) is stationary. A flat wall moves directly towards the source with speed \(v_w = 10\ \text{m s}^{-1}\). An observer moves directly away from the source with speed \(v_o = 30\ \text{m s}^{-1}\). The speed of sound in air is \(v = 340\ \text{m s}^{-1}\). The observer receives the sound after it is reflected from the moving wall. What frequency does the observer hear?
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About This Question
This is Gce Model Questions Vol1 2018 Physics Question 27. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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