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A mercury thermomeeter contains 2c.c. of...

A mercury thermomeeter contains `2c.c.` of `Hg.` at `0^(@)C`. Distance between `0^(@)C` and `100^(@)C` marks on the stem is `35cm` and diameter of the bore is `0.02cm` then `gamma_(A)` of liquid is

A

`0.000055//^(0)C`

B

`0.000066//^(0)C`

C

`0.00055//^(0)C`

D

`0.000058//^(0)C`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaV = Vgamma_(A)Deltat` ….(1), `DeltaV = Al = pir^(2)l` ……(2)
from `(1)` and `(2) Vgamma_(A)Deltat = pir^(2)t`
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Knowledge Check

  • A carnot engine first works between 100^(@)C and 0^(@)C and then between 0^(@)C and -100^(@)C . What is the ratio of its efficiency in these two cases ?

    A
    0.51
    B
    0.63
    C
    0.73
    D
    0.85

  • Mercury is the only metal which is liquid at 0^(@)C .this is due to

    A
    Very high ionisation energy and weak metallic bond
    B
    Low ionisation energy
    C
    High atomic weight
    D
    High vapour pressure

  • Mercury is the only metal which is liquid at 0^(@) C. This is due to its:

    A
    Very high ionisation energy and weak metallic bond
    B
    Low ionisation potential
    C
    High atomic weight
    D
    High vapour pressure
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