Physics
When the weight of a body is greater than the weight of the liquid displaced, the body will
- float
- sink
- float partially outside
- first go down then come up
Answer
sink
Reason — Two forces act on a body immersed in a liquid:
- weight of the body acting vertically downwards and
- upthrust acting vertically upwards.
Upthrust is equal in magnitude to the weight of the liquid displaced. When weight of a body is greater than the weight of the liquid displaced, implies downwards force is more than the upwards force, hence the body sinks.
Related Questions
For a floating body, its weight W and upthrust FB on it are related as:
- W > FB
- W < FB
- W = FB
- nothing can be said
The upthrust is maximum (= FB) when the body is:
- floating in the liquid
- completely immersed inside the liquid
- partially immersed inside the liquid
- None of these
A body weighing W floats partially above and partially below the liquid when (F'B denotes maximum upthrust) :
- W > F'B
- W = F'B
- W < F'B
- none of these
A body of weight W is floating in a liquid. Its apparent weight will be:
- equal to W
- less than W
- greater than W
- zero