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A ball is made of a material of density ...

A ball is made of a material of density `rho` where `rho_(oil)ltrholtrho_(water)` with `rho_(oil)` and `rho_(water)` representing the densities of oil and water, respectively. The oil and water are immiscible. If the above ball is in equilibrium in a mixture of this oil and water, which of the following pictures represents its equilibrium position?

A

B

C

D

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Knowledge Check

  • A ball is made of a material of density rho where rho_("oil")ltrholt rho_("water") with rho_("water") representing the densities of oil and water, respectively. The oil and water are immiscible. If the above ball is in equilibrium in a mixture of this oil and water, which of the following pictures represents its equilibrium positions?

    A
    B
    C
    D

  • In a mixture of oil and water, water forms

    A
    lower layer
    B
    upper layer
    C
    dissolve in each other
    D
    either lower or upper layer

  • In case of oil in water emulsion, which of the following is NOT true?

    A
    When small amount of an electrolyte is added, the emulsion becomes conducting.
    B
    When oil is added, a separate layer is formed.
    C
    When water is added, water is readily miscible.
    D
    Oil is continuous phase.

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    Why is a mixture of salt in water a solution while that of oil water is not ?

    A mixture of oil and water is separated by:

    An example of oil in water emulsion is

    Which of the following is an example of oil in water emulsion?

    In case of a hollow body, if rho_B and rho_S represent the densities of the body and the substance (of which it is made) respectively, then:

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