Waec Model Questions Vol1 2019 Physics Question 9
Practice objective / multiple choice question 9 from the 2019 Waec Model Questions Vol1 Physics examination.
A source emits sound of frequency 500 Hz and moves towards a stationary observer at 30 m s⁻¹. Simultaneously the observer moves towards the source at 20 m s⁻¹. If the speed of sound in air is 340 m s⁻¹, what frequency does the observer hear? Give your answer to the nearest hertz.
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About This Question
This is Waec Model Questions Vol1 2019 Physics Question 9. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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