If a source of solid is moving; a stationary listener will hear a sound of different frequency. This is called? by Sunday | Mar 25 | Physics JAMB | 0 comments A. doppler effect B. resonance C. ultra sound D. rarefaction Correct Answer: Option A – doppler effect Users Also Read These:How far from a cliff should a boy stand in order to…A source of sound produces waves in air of…A listener can detect the instrument from which a…A solid of mass 0.5kg initially at 50oC melts at…Why do you do such thing? For I hear of your evil…