In a resonance tube experiment, if the fundamental frequency of the vibrating air column is 280Hz, the frequency of the third overtone is
-
A.
70Hz -
B.
840Hz -
C.
1120Hz -
D.
1960Hz
Correct Answer: Option D
Explanation
F3 = 7Fo
= 7 x 280
= 1960Hz
F3 = 7Fo
= 7 x 280
= 1960Hz