6-9: 4 SEE ANSWER
Answer: 1/81 of I1
The intensity is found with the equation: I = 1/(n^2) of I1
Plug 9 in for n since we are looking for the 9th harmonic: I = 1/(9^2) of I1 = 1/81 of I1
- REDIRECT 6-9 Assessment
Answer: 1/81 of I1
The intensity is found with the equation: I = 1/(n^2) of I1
Plug 9 in for n since we are looking for the 9th harmonic: I = 1/(9^2) of I1 = 1/81 of I1