A stretched string is fixed at and

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A stretched string is fixed at

x = 0

and

x = L

. At a certain instant, antinodes are seen at

x = 0.15\,\text{m}

x = 0.45\,\text{m}

, and

x = 0.75\,\text{m}

, with no other antinodes between the ends. Which harmonic of the string is vibrating? (a)

4^{\text{th}}\;\text{harmonic}

(b)

2^{\text{nd}}\;\text{harmonic}

(c)

3^{\text{rd}}\;\text{harmonic}

(d)

5^{\text{th}}\;\text{harmonic}