An object weighing 5 N in air, weighs 4.5 N a liquid. The buoyant force experienced by the object is
The buoyant force experienced by the object is:- The buoyant force is in opposite direction to the weight of the object. Hence, if the object weighs 4.5 N in liquid then 0.5 N buoyant force will act on the object.
The same body is immersed in two liquids A and B in succession. The extent to which the body sinks in liquid B is less then in liquid A. What are the conclusions that could be derived from such an observation
The density of liquid B is more than the liquid A as more upthrust is exerted on the body in liquid B and hence it sinks less.
A sample of milk diluted with water has a density of 1040 kgm-3 . If pure milk has a density of 1080 kgm-3. The percentage of water by volume in milk is
Density of pure milk = 1080 Kg /m³
1080 kg / m³ = 100% pure milk
Density of diluted milk = 1032 kg / m³
1032 Kg/m³ = ? % of milk
1032 x 100/1080 = 95.56% of milk
Thus, the percentage of water by volume in milk is 100 – 95.56 = 4.44%
A student lowers a body in a liquid filled in a container. He finds that there is a maximum apparent loss in weight of the body when
The density of copper is 9 g/cm3. Then the volume of 90 g copper is
Density of copper = 9 gm/cm^3
Mass of copper = 90 g
We know; Density = mass / volume
⇒ volume = mass / density
⇒ 90 / 9
⇒ Volume = 10 cm3
The sea water is denser than fresh water due to
Instrument used for measuring the density or relative density of liquids is known as
A packet of 400 g and volume 200 cm3 is put in a water tank. The relative density of packet is
An object of weight 500 N is floating in a liquid. The magnitude of buoyant force acting on it is
If relative density is 11.3, the density of the substance in SI units is
If the density of the object placed in a liquid is equal to the density of the liquid, the object will:
If the density of the object placed in liquid is equal to the density of the liquid, then :- It would float submerged in the liquid. Some part of the solid would be above the liquid surface and part would be inside the liquid surface.
The mass of water displaced by a solid of mass 400 g and volume 150 cm3 is
Three objects A, B, and C having density 1.12 g cm-3, 0.92 g cm-3 and 2.02 g cm-3 respectively, are placed in a water tank. Which object will sink in water tank?
When a solid body is fully immersed in a liquid, the volume of the displaced liquid is:
If we want to determine the volume of a solid by immersing it in water, the solid should be