A stretched string of length L,fixed at both ends,is vibrating in its third harmonic.How far from the end of the string can the blade of a screwdriver be placed against the string without disturbing the amplitude of the vibration?
A)L/6
B)L/4
C)L/5
D)L/2
E)None of these is correct.

Question

Quizplus · Accepted Answer

The Answer of A stretched string of length L,fixed at both ends,is vibrating in its third harmonic.How far from the end of the string can the blade of a screwdriver be placed against the string without disturbing the amplitude of the vibration?
A)L/6
B)L/4
C)L/5
D)L/2
E)None of these is correct.

A Stretched String of Length L,fixed at Both Ends,is Vibrating