A 25 cm string of mass 2.5 g is under tension. A 40 cm pipe closed at one end is sounded simultaneously. The string vibrates in its first overtone and the pipe in its fundamental; 8 beats s⁻¹ are heard. Decreasing string tension decreases the beat frequency. Take sound speed = 320 m s⁻¹. Find the string tension.
Physics · Wave Motion
A 25 cm string of mass 2.5 g is under tension. A 40 cm pipe closed at one end is sounded simultaneously. The string vibrates in its first overtone and the pipe in its fundamental; 8 beats s⁻¹ are heard. Decreasing string tension decreases the beat frequency. Take sound speed = 320 m s⁻¹. Find the string tension.