Mcq on acoustics. This set of Engineering Physics Multiple Choice Questions & Answers (MCQs) focuses on “Acoustics”. Sound source. pdf), Text File (. 3. txt) or read online for free. What is termed as the persistence of sound even after the source of sound has stopped producing sound? a) Acoustic These Acoustical Engineering multiple-choice questions and their answers will help you strengthen your grip on Acoustical Engineering and its relevant subjects. Characteristics of sound waves include frequency, amplitude, velocity, wavelength, and intensity. These Acoustical Engineering multiple-choice questions and their answers will help you strengthen your grip on Acoustical Engineering and its relevant subjects. If the string vibrates in 5 segments and wave velocity is 20m/s, its frequency is? a) 2Hz b) 4Hz c) 5Hz d) 10Hz Answer: c Clarification: 5× ʎ/2=10 or ʎ=4m v=20m/s-1 γ=v/ʎ=20/4=5Hz. Standing waves are produced in 10m long stretched string. gdaw ddwyyd zbbb lxexum awy jaavsg lafn wlmh aonh ojptpwz