Neco 2022 Physics Question 22
Practice objective / multiple choice question 22 from the 2022 Neco Physics examination.
A stationary source S1 emits sound of frequency \(500\ \text{Hz}\) in air where the speed of sound is \(340\ \text{m s}^{-1}\). An observer O moves directly towards S1 with speed \(10\ \text{m s}^{-1}\). At the same instant a second stationary source S2, located 30 m behind O, emits sound of frequency \(480\ \text{Hz}\). The source S2 moves away from O with speed \(5\ \text{m s}^{-1}\). Determine the beat frequency heard by O (in Hz, to one decimal place).
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About This Question
This is Neco 2022 Physics Question 22. It is one of the objective questions from the 2022 Neco Physics examination.
Difficulty level: Medium .
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