Advertisements
Advertisements
प्रश्न
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).
Advertisements
उत्तर
Weight of body in air = 450 gf
Weight of body in water = 310 gf
(i) Volume of the body = Loss in weight × density of water
= (450 - 310) × 1 [Assumption : density of water = `1 "g cm"^-3`]
= 140 `"cm"^3`
(ii) Loss in weight = Weight of body in air - Weight of body water
= (450 - 310) gf
= 140 gf
(iii) Upthrust on body = loss in weight = 140 gf
APPEARS IN
संबंधित प्रश्न
What is the other name of buoyant force ?
A body experiences the same buoyant force while floating in water or alcohol.
A body experiences the same buoyant force when it floats or sinks in water.
Describe an experiment to determine the density of the material of a coin.
For a given object, the buoyant force in liquids of different ______ is ______.
Explain why a gas bubble released at the bottom of a lake grows in size as it rises to the surface of the lake.
A dam has broader walls at the bottom than at the top. Explain.
How does the liquid pressure on a diver change if :
The diver moves horizontally?
A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:
- the volume of body,
- the upthrust on body and
- the apparent weight of body in water.
Is pressure a vector quantity?
