Gce Model Questions Vol1 2023 Physics Question 34
Practice objective / multiple choice question 34 from the 2023 Gce Model Questions Vol1 Physics examination.
A source emits sound of frequency \(800\,\text{Hz}\). The source moves towards a stationary observer at \(20\,\text{m\,s}^{-1}\). Simultaneously the observer moves away from the source at \(10\,\text{m\,s}^{-1}\) along the same line. The speed of sound in air is \(340\,\text{m\,s}^{-1}\).\n\(i\) What frequency does the observer hear from this moving source?\n\(ii\) The observer also hears a second stationary source emitting \(780\,\text{Hz}\). What is the beat frequency heard by the observer?
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About This Question
This is Gce Model Questions Vol1 2023 Physics Question 34. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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