A closed organ pipe of length 1.5 m is filled with a gas, and is in resonance with a tuning fork in its fundamental note. Another open organ pipe of the same length that is also filled with air is in resonance with that tuning fork in its fundamental note. If the temperature of the room is 30°C and the speed of sound in air at 30°C is 360 ms'1, then what will be the speed of sound in the gas at 30°C?

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A closed organ pipe of length 1.5 m is filled with a gas, and is in resonance with a tuning fork in its fundamental note. Another open organ pipe of the same length that is also filled with air is in resonance with that tuning fork in its fundamental note. If the temperature of the room is 30°C and the speed of sound in air at 30°C is 360 ms'1, then what will be the speed of sound in the gas at 30°C?