Advertisements
Advertisements
Question
How does the liquid pressure on a diver change if :
The diver moves horizontally?
Advertisements
Solution
When the diver moves horizontally, his depth from the free surface remains constant and hence the pressure on him remains unchanged.
RELATED QUESTIONS
Name the force which makes heavy objects appear light when immersed in a liquid.
Name the scientist who gave he magnitude of buoyant force acting on a solid object immersed in a liquid.
Distinguish between density and relative density.
How does the density of a body and that of a liquid determine whether the body will float or sink into that liquid?
The diagram given below show a body floating in three different liquids. A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
(b) Which liquid has the least density?
(c) Which liquid has the highest density?
Differentiate between thrust and pressure.
Explain the following statement:
Sleepers are laid below the rails.
- Calculate the height of a water column which will exert on its base the same pressure as the 70 cm column of mercury. Density of mercury is 13.6 g cm-3.
- Will the height of the water column in part (a) change if the cross-section of the water column is made wider?
What is the centre of buoyancy? State its position for a floating body with respect to the centre of gravity of the body.
Is thrust a scalar or vector quantity?
