Which string vibrates slowest when srtummed?

The string that vibrates slowest when strummed is typically the thickest string on a musical instrument, such as the lowest string on a guitar or bass. Thicker strings have more mass, which results in lower frequencies and slower vibrations compared to thinner strings. Consequently, they produce deeper, bass-like sounds. The tension and length of the string also play significant roles in determining its vibration rate.