For a standing wave mode on a string fixed at both ends
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
17. For a standing wave mode on a string fixed at both ends, adjacent antinodes are separated by a distance of 20 cm . Waves travel on this string at a speed of 1200cm/s. At what frequency is the string vibrated to produce this standing wave?
(A) 120 Hz
(B) 60 Hz
(C) 40 Hz
(D) 30 Hz