Advertisements
Advertisements
Question
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
Options
Ture
False
Advertisements
Solution
True.
APPEARS IN
RELATED QUESTIONS
In what direction does the buoyant force on an object immersed in a liquid act?
What is meant by the term ‘buoyancy’ ?
When does an object float or sink when placed on the surface of a liquid ?
The diagram given below show a body floating in three different liquids. A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
(b) Which liquid has the least density?
(c) Which liquid has the highest density?
Explain why an iron needle sinks in water, but a ship made of iron floats on water.
Why is the tip of an allpin made sharp?
A dam has broader walls at the bottom than at the top. Explain.
- 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?
It is easier to lift a heavy stone under water than in air. Explain.
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
