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4. An air column which is closed at one end resonates at the third resonant length. The frequency of sound wave is 1244 Hz. The

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4. An air column which is closed at one end resonates at the third resonant length. The frequency of sound wave is 1244 Hz. The air temperature is 16 C. a) What is the speed of sound in air? [APP - 2 marks] b) What is the length of the closed column? [THINK - 2 marks] c) What is the wavelength? [APP - 2 marks] 9 X

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