Advertisements
Advertisements
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 ?
उत्तर
The buoyant force increases when there is an increase in volume of solid object immersed in a liquid. The buoyant force reaches the maximum when the object is completely immersed in a liquid.
APPEARS IN
संबंधित प्रश्न
A body experiences the same buoyant force while floating in water or alcohol.
What physical quantity is measured in bar?
A hammer exerts a force of 1.5 N on each of the two nails A and B. The area of cross section of tip of nail A is 2 mm2 while that of nail B is 6 mm2. Calculate pressure on each nail in pascal.
- Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g cm-3.
- Will the height of the water column in part (a) change if the cross-section of the water column is made wider?
Why is a force needed to keep a block of wood inside water?
You are provided with a hollow iron ball A of volume 15 cm3 and mass 12 g and a solid iron ball B of mass 12 g. Both are placed on the surface of water contained in a large tub.
- Find upthrust on each ball.
- Which ball will sink? Give a reason for your answer (Density of iron = 8.0 g cm-3)
What is the centre of buoyancy? State its position for a floating body with respect to the centre of gravity of the body.
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
The center of gravity of the floating body and the center of buoyance are in the same ______ line.
Salt water provides less buoyant force than freshwater.
