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संबंधित प्रश्न
Name and state the principle on which a hydraulic press works. Write one use of hydraulic press.
Explain the working of a hydraulic brake with a simple labelled diagram.
A force of 50 kgf is applied to the smaller piston of a hydraulic machine. Neglecting friction, find the force exerted on the large piston, if the diameters of the pistons are 5 cm and 25 cm respectively.
P is the pressure at some point in a liquid. State whether pressure P is a scalar or vector quantity.
The density of iron is 7800 kg m-3. What do you mean by this statement? What is density of water at 40C?
Unit of pressure is
Assertion: Pascal’s law is the working principle of a hydraulic lift.
Reason: Pressure is thrust per unit area.
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)
