The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 180Hz _____?

By: |Published on: Mar 31|Categories: Physics JAMB| 0 comments

A. 4
B. 3
C. 2
D. 1

Correct Answer:

Option B = 3

Explanation

f0 = 40Hz
1st overtone = 2f0 = 80Hz
2nd overtone = 3f0 = 120Hz
3rd overtone = 4f0 = 160Hz
4th overtone = 5f0 = 200Hz
∴ Number of overtones between 40Hz and 180Hz = 3

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