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question:the brass scale of a barometer gives correct reading o degree centigrate.The barometer reads 75cm at 27 degree centigrate .what is the correct atmosphearic pressure at 27 degree celcius.the coefficient of linear expension alfa of brass is 2*10^-5/degree celcius?

question:the brass scale of a barometer gives correct reading o degree centigrate.The barometer reads 75cm at 27 degree centigrate .what is the correct atmosphearic pressure at 27 degree celcius.the coefficient of linear expension alfa of brass is 2*10^-5/degree celcius?

Grade:12th pass

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