Difficult
$A$ cylindrical vessel of height $500 \ mm$ has an orifice (small hole) at its bottom. The orifice is initially closed and water is filled in it up to height $H$. Now the top is completely sealed with a cap and the orifice at the bottom is opened. Some water comes out from the orifice and the water level in the vessel becomes steady with the height of the water column being $200 \ mm$. Find the fall in height (in $mm$) of the water level due to the opening of the orifice.
[Take atmospheric pressure $= 1.0 \times 10^5 \ N/m^2$,density of water $= 1000 \ kg/m^3$ and $g = 10 \ m/s^2$. Neglect any effect of surface tension.]
[Take atmospheric pressure $= 1.0 \times 10^5 \ N/m^2$,density of water $= 1000 \ kg/m^3$ and $g = 10 \ m/s^2$. Neglect any effect of surface tension.]
- A$6$
- B$5$
- C$4$
- D$3$
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$A$ slender homogeneous rod of length $2L$ floats partly immersed in water,being supported by a string fastened to one of its ends,as shown. The specific gravity of the rod is $0.75$. The length of the rod that extends out of water is:
Match the columns $I$ and $II$:
Column $I$ Column $II$ $A$. Stoke's law $I$. Pressure and energy $B$. Turbulence $II$. Hydraulic lift $C$. Bernoulli's Principle $III$. Viscous drag $D$. Pascal's law $IV$. Reynold's number
The correct match is:
| Column $I$ | Column $II$ |
|---|---|
| $A$. Stoke's law | $I$. Pressure and energy |
| $B$. Turbulence | $II$. Hydraulic lift |
| $C$. Bernoulli's Principle | $III$. Viscous drag |
| $D$. Pascal's law | $IV$. Reynold's number |
The correct match is:
DifficultTS EAMCET 2021
View SolutionGiven below are two statements:
$Statement$ $(I)$: Viscosity of gases is greater than that of liquids.
$Statement$ $(II)$: Surface tension of a liquid decreases due to the presence of insoluble impurities.
In the light of the above statements,choose the most appropriate answer from the options given below:
$Statement$ $(I)$: Viscosity of gases is greater than that of liquids.
$Statement$ $(II)$: Surface tension of a liquid decreases due to the presence of insoluble impurities.
In the light of the above statements,choose the most appropriate answer from the options given below:
DifficultJEE MAIN 2024
View SolutionState whether the following statements are True or False:
$(i)$ The Bernoulli equation can be considered to be a statement of the conservation of energy.
$(ii)$ The angle of contact between a drop of water and the material of a raincoat is an acute angle.
$(iii)$ The absence of roughness between two consecutive layers of fluid is the definition of viscosity.
$(i)$ The Bernoulli equation can be considered to be a statement of the conservation of energy.
$(ii)$ The angle of contact between a drop of water and the material of a raincoat is an acute angle.
$(iii)$ The absence of roughness between two consecutive layers of fluid is the definition of viscosity.
Medium
View SolutionWhich of the following is not the property of an ideal fluid?
Easy
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