Gce Model Questions Vol1 2025 Physics Question 18
Practice objective / multiple choice question 18 from the 2025 Gce Model Questions Vol1 Physics examination.
A source emits sound of frequency \(800\ \text{Hz}\) and moves directly towards a stationary observer at \(20\ \text{m s}^{-1}\). At the same time a second identical source, fixed in the laboratory, also emits \(800\ \text{Hz}\) sound, while the observer moves directly away from it at \(10\ \text{m s}^{-1}\). The speed of sound in air is \(340\ \text{m s}^{-1}\). What beat frequency does the observer hear?
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About This Question
This is Gce Model Questions Vol1 2025 Physics Question 18. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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