Q

Which of the following situations best demonstrates that a vibrating object is necessary for the production of sound?

RRB Group D 25 Aug, 2026 (12:45 PM - 2:15 PM) 2026
✓ Answer: D Plucking a stretched guitar string and hearing a tone
The correct choice is Plucking a stretched guitar string and hearing a tone. Sound behaviour is determined by wave properties such as frequency, amplitude, wavelength and the medium of propagation.