Physics
A body will experience minimum upthrust when it is completely immersed in:
- Turpentine
- Water
- Glycerine
- Mercury
Answer
Turpentine
Reason — One of the factors affecting the upthrust is the density of the liquid in which the body is submerged. Lesser the density of the liquid, lesser is the upthrust experienced by a body. As amongst the given options turpentine has the least density, hence minimum upthrust will be offered by turpentine.
Related Questions
Bodies of density …………… than that of the liquid sink in it, while bodies of average density equal to or …………… than that of the liquid float on it.
- smaller, greater
- greater, greater
- greater, smaller
- smaller, smaller
Floating of a cork on the surface of water indicates that :
- the density of water is more than the density of cork.
- the density of water is less than the density of cork.
- the density of water is equal to the density of cork.
- the density of water plays no role in the floatation of cork.
Sinking of an iron nail in water implies that :
- the density of nail is more than the density of water
- the density of nail is less than the density of water
- the density of nail is equal to the density of water
- the sinking of nail does not depend upon the density of water
A body of density ρ sinks in a liquid of density ρL. The densities ρ and ρL are related as:
- ρ = ρL
- ρ < ρL
- ρ > ρL
- nothing can be said