Question

A guitar string is 1.75 m. Calculate the wavelength of the 78th harmonic *

A) 78 m
B) 0.02 m
C) 0.04 m
D) 0 44.60

Answer 1

0.04 m

Step-by-step explanation:

The harmonic is given by λ = 2L/n were L= length of guitar string = 1.75 m and n = harmonic = 78.

So, λ = 2L/n = λ = 2 × 1.75 m/78 = 0.044 m ≅ 0.04 m