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QNEET-2017-Ph-1004: NEET 2017 Physics - Class 11 NEET-2017-Ph-1004 Solution: The two nearest harmonics of a tube closed at one end and open…
The two nearest harmonics of a tube closed at one end and open at other end are 220 Hz and 260 Hz. What is the fundamental frequency of the system? 20 Hz 30 Hz 40 Hz 10 Hz
Multiple Choice Options
- A 20 Hz
- B 30 Hz
- C 40 Hz
- D 10 Hz
Step-by-Step Verified Solution
The difference of frequencies of closed pipe
2 v 4 l = 260 _ 220 = 40 H z
So, the fundamental frequency f _ = v 4 l = 20 H z