Advertisements
Advertisements
प्रश्न
Write the SI units of Buoyant force
Advertisements
उत्तर
SI unit of the buoyant force is N.
APPEARS IN
संबंधित प्रश्न
What happens to the buoyant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force become maximum ?
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body C having density 1100 kg m-3
Define the term thrust. State its S.I. unit.
Pressure at the free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related? (b)Which is more P1 or P2?
How does the liquid pressure on a diver change if :
The diver moves horizontally?
The diagram below in Fig. 4.12 shows a device which makes the use of the principle of transmission of pressure.
- Name the parts labelled by the letters X and Y.
- Describe what happens to valves A and B and to the quantity of water in the two cylinders when the lever arm is moved down.
- Give reasons for what happens to valves A and B in part (ii).
- What happens when the release valve is opened?
- What happens to valve B in cylinder P when the lever arm is moved up?
- Give a reason for your answer in part (v).
- State one use of the above device.
The pressure P1 at the top of a dam and P2 at a depth h form the top inside water (density p) are related as :
A vessel contains water up to a height of 1.5 m. Taking the density of water 103 kg m-3, acceleration due to gravity 9.8 m s-2 and area of base of vessel 100 cm2, calculate: (a) the pressure and (b) the thrust at the base of vessel.
In a fluid, buoyant force exists because the pressure at the ______ of an object is greater than the pressure at the top.
If the buoyant force is less, the object will float.
