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What is apparent weight of a body immers...

What is apparent weight of a body immersed in a liquid?

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What do you mean by the apparent weight of a body immersed in a liquid? State whether it is more or less than the real weight.

The weights of a body in air and water are W and W' respectively. Prove that the apparent weight of the body when immersed in a liquid of density delta will be W''=W-(W-W')delta .

Knowledge Check

  • Apparent weights of a body immersed in a liquid at the temperature t_(1) is W_(1) and temperature t_(2) is W_(2) . Coefficients of volume expansion of the liquid and the solid are gamma and gamma_(s) respectively. The value of W_(2)-W_(1) will be

    A
    proportional to `(gamma-gamma_(s))(t_(2)-t_(1))`
    B
    proportional to `(gamma-gamma_(s))/(t_(2)-t_(1))`
    C
    proportional to `(t_(2)-t_(1))/(gamma-gamma_(s))`
    D
    proportional to `1/((gamma-gamma_(s))(t_(2)-t_(1)))`

  • The weight of a body is maximum :

    A
    at the bottom of Atlantic ocean
    B
    at the top Mt. Everest
    C
    at equator
    D
    at pole

  • Apparent weight of a body immersed in water at 20^(@)C is W_(1) . When temperature is increased to 40^(@)C , the apparent weight becomes W_(2) . In this case

    A
    for different solids `W_(2)` may be greater than or less than `W_(1)`
    B
    `W_(2)` is always equal to `W_(1)`
    C
    `W_(2)` is always less than `W_(1)`
    D
    `W_(2)` is always greater than `W_(1)`

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    Due to the upthrust of a liquid, the weight of a body immersed in that liquid decreases or increase?

    A body weighs 100gxxgand40gxxg in air and water respectively. Calculate the weight of the body when immersed in a liquid of specific gravity 0.8.

    The apparent weight of a body in a liquid of density d_(1) is m_(1) and, in another liquid of density d_(2) , its apparent weight is m_(2) . What will be its apparent weight in a liquid of density d_(3) ?

    What is the apparent weight of a floating body?

    With increase in temperature, the upthrust acting on a body immersed in a liquid

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