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Convert 0.5 atmospheres pressure into mm...

Convert 0.5 atmospheres pressure into mm of mercury.

Text Solution

Verified by Experts

1 atm = 760 mm of Hg
`:. 0.5` atm pressure = `(760 mm xx 0.5 atm)/(1 atm)`
`= 380.0 mm of Hg. `
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An open glass tube is immersed in mercury in such a way that the length 8 cm extends above the mercury level. Now the open ,end of the tube is closed by a finger and raisedfurlher by 44 cm. What will be the length of air column above mercury in the tube. Take atmospheric pressure to he 76cm of mercury. Neglect capillary effect.

An open glass tube is immersed in mercury in such a way that the length 8 cm extends above the mercury level. Now the open end of the tube is closed by a finger and raised by further by 44 cm. What will be the length of air column above mercury in the tube. Take atmospheric pressure to be 76 cm of mercury. Neglect capillary effect.

Knowledge Check

  • An open glass tube is immersed in mercury in such a way that the length 8 cm extends above the mercury level. Now the open end of the tube is closed by a finger and raised further by 44 cm. What will be the length of air column above mercury in the tube. Take atmospheric pressure to be 76cm of mercury. Neglect capillary effect.

    A
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    B
    15.4 cm
    C
    25.4 cm
    D
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  • Unit of atmospheric pressure is

    A
    Pascal
    B
    `N//m^(2)`
    C
    A or B
    D
    None

  • At normal atmospheric pressure the height of the mercury column in barometer is

    A
    76 cm
    B
    7.6 cm
    C
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    D
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