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1) a column of air 40cm long in a glass tube with a cross sectional area 0.5 cm square and arrranged vertically with a sealed end upward is isolated by a column of Hg 8cm long. the temperature is 27 degree celsius.how will the length of the air column change, if the tube is inclined at 60 degree celsius from the vertical and the temperature is simultaneously raised by 30 degree celsius? assume the atmospheric pressure to be 76cm of Hg and neglect expansion of glass and mercury? ANS: the length of the air column is increases by 1.5cm


 

1) a column of air 40cm long in a glass tube with a cross sectional area 0.5 cm square and arrranged vertically with a sealed end upward is isolated by a column of Hg 8cm long. the temperature is 27 degree celsius.how will the length of the air column change, if the tube is inclined at 60 degree celsius from the vertical and the temperature is simultaneously raised by 30 degree celsius? assume the atmospheric pressure to be 76cm of Hg and neglect expansion of glass and mercury?
ANS: the length of the air column is increases by 1.5cm


Grade:9

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