Physics
The effect of upthrust is that the weight of a body immersed in a liquid appears to be :
- more than its actual weight
- the same as its weight outside the liquid
- less than its actual weight
- None of these
Fluids Upthrust
30 Likes
Answer
less than its actual weight
Reason — Due to the upthrust or the buoyant force acting on a body immersed in water, the weight of a body appears to be less than its actual weight.
Answered By
18 Likes
Related Questions
If an empty can is pushed into water, we feel :
- a downward force
- an upward force
- it is easy to push the can into water
- both (a) and (c)
Which of the following are the correct characteristic properties of upthrust ?
(i) the smaller the volume of a body submerged in a liquid, the smaller is the upthrust
(ii) the upthrust acts on the body in an upward direction at the centre of buoyancy
(iii) for the same volume of a body inside a fluid, the less the density of the fluid, greater will be the upthrust
- (i) & (ii)
- (i) & (iii)
- (ii) & (iii)
- (i), (ii) & (iii)
The S.I. unit of upthrust is:
- Pa
- N
- kg
- kg m2
The property of a liquid to exert an upward force on a body immersed in it is called :
- buoyancy
- pressure
- friction
- viscosity