JEE Main 2019 Physics question
A closed organ pipe has a fundamental frequency of 1.5 kHz. The number of overtones that can be distinctly heard by a person with this organ pipe will be (Assume that the highest frequency a person can hear is 20,000 Hz)
Answer: (C)
Solution
Odd harmonics 1.5, 4.5, …, 19.5 kHz: 7 frequencies, i.e. 6 overtones.