MHT CET 2025 Physics question
The fundamental frequency of a closed pipe of length L is equal to the second overtone of a pipe at both the ends of length (XL). The value of X is (Neglect end correction)
Answer: (C)
Solution
A pipe "at both the ends" open is an open pipe. Fundamental frequency of the closed pipe: . For an open pipe of length the harmonics are , and the second overtone is the third harmonic: . Equating:
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