A standing wave is set up in a 200-cm string fixed at both ends.The string vibrates in 8 distinct segments when driven by a 120-Hz source.What is the wavelength?
A)6 cm
B)13 cm
C)25 cm
D)50 cm
E)100 cm

Question

A standing wave is set up in a 200-cm string fixed at both ends.The string vibrates in 8 distinct segments when driven by a 120-Hz source.What is the wavelength?
A)6 cm
B)13 cm
C)25 cm
D)50 cm
E)​100 cm

Quizplus · Accepted Answer

The length of the string is 200 cm, and it vibrates in 8 segments, meaning there are 8 half-wavelengths in the string. Therefore, the wavelength is (200 cm / 8) * 2 = 50 cm.

A Standing Wave Is Set Up in a 200-Cm String