Advertisements
Advertisements
Question
Select the correct option.
A dam for water reservoir is built thicker at the bottom than at the top because
Options
pressure of water is very large at the bottom due to its large depth
water is likely to have more density at the bottom due to its large depth
quantity of water at the bottom is large
variation in value of ‘g’
Advertisements
Solution
pressure of water is very large at the bottom due to its large depth
APPEARS IN
RELATED QUESTIONS
Consider the equations `P=lim_(triangles->0)"F"/(triangle"S")` and P1 - P2 = pgz. In an elevator accelerating upward
Explain the working of a hydraulic brake with a simple labelled diagram.
What should be the ratio of area of cross section of the master cylinder and wheel cylinder of a hydraulic brake so that a force of 15 N can be obtained at each of its brake shoe by exerting a force of 0.5 N on the pedal ?
Select the correct option.
The pressure exerted by 50 kg (g = 10 m/s−2) on an area of cross-section of 2 m2 is
Name three applications of Pascal's law.
State two uses of a hydraulic press.
Unit of pressure is
An iceberg of density 700 kg/m3 is floating in the water of density 1000 kg/m3. The percentage of the volume of ice cube outside the water is:
Consider a water tank shown in the figure. It has one wall at x = L and can be taken to be very wide in the z direction. When filled with a liquid of surface tension S and density ρ, the liquid surface makes angle θ(θ << 1) with the x-axis at x = L. If y(x) is the height of the surface then the equation for y(x) is:
(take θ(x) = sin θ(x) = tan θ(x) = `dy/dx`, g is the acceleration due to gravity)
