For a certain organ pipe , three successive resonance frequencies are observed at 170 Hz, 255Hz, 340Hz respectively, then the pipe isA. Open end pipe with fundamental frequency 85HzB. Open end pipe with fundamental frequency 170HzC. Closed at one end pipe with fundamental frequency 85HzD. Closed at one end pipe with fundamental frequency 170 Hz

For a certain organ pipe , three successive resonance frequencies are

1.	For a certain organ pipe , three successive resonance frequencies are observed at 170 Hz, 255Hz, 340Hz respectively, then the pipe isA. Open end pipe with fundamental frequency 85HzB. Open end pipe with fundamental frequency 170HzC. Closed at one end pipe with fundamental frequency 85HzD. Closed at one end pipe with fundamental frequency 170 Hz
Answer» Correct Answer - A The successive frequency are 170, 255 and 340 Hz `n_2 - n_1 = 255 - 170 = 85 Hz` and `n_3 - n_2 = 340 - 255 = 85 Hz` `170= 85xx2` `255=85xx3` `340=85xx4` Hence it is a open organ pipe with fundamental frequency equal to 85 Hz.

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