Neco Model Questions Vol1 2021 Physics Question 23
Practice objective / multiple choice question 23 from the 2021 Neco Model Questions Vol1 Physics examination.
Two loudspeakers \(S_{1}\) and \(S_{2}\) emit sound of frequencies 512 Hz and 520 Hz respectively. They are 3.0 m apart and the speed of sound in air is 340 m s⁻¹. A listener stands at a point \(P\) on the line joining the speakers such that the path difference between the waves from \(S_{1}\) and \(S_{2}\) at \(P\) equals half the wavelength of the 512 Hz sound. (a) Find the beat frequency heard at \(P\). (b) State whether the 512 Hz component at \(P\) is at a maximum or a minimum of intensity.
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About This Question
This is Neco Model Questions Vol1 2021 Physics Question 23. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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