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प्रश्न
The S.I. unit of upthrust is :
विकल्प
Pa
N
kg
kg m2
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उत्तर
The S.I. unit of upthrust is : N
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संबंधित प्रश्न
Define buoyant force. Name two factors on which buoyant force depends.
What is a density bottle? How is it used to find the density of a liquid?
Define the term relative density of a substance.
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
What is meant by pressure? State its S.I. unit.
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?
In what direction and at what point does the buoyant force on a body due to a liquid act?
A body weighs 450 gf in air and 310 gf when completely immersed in water. Find
(i) The volume of the body,
(ii) The loss in weight of the body, and
(iii) The upthrust on the body.
State the assumption made in part (i).
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : _____.
