Question

A string of length `L` fixed at its at its both ends is vibrating in its `1^(st)` overtone mode. Consider two elements of the string of same small length at position `l_1=0.2L` and `l_2=0.45L` from one end. If `K_1` and `K_2` are their respective maximum kinetic energies then
A. `K_(1)=K_(2)`
B. `K_(1)gtK_(2)`
C. `K_(1)ltK_(2)`
D. it is not possible to decide the relation

Answer 1

Correct Answer - B

It is obvious that particle at 0.2 L will have larger amplitude that particle at 0.45 L, 0.5 L being the node and 0.25 being amplitude.