A piece of stone of mass 15.1 g is first immersed in a liquid and it weighs 10.9 gf. Then on immersing the piece of stone in water, it weighs 9.7 gf. Calculate —

(a) the weight of the piece of stone in air,

(b) the volume of the piece of stone,

(c) the relative density of stone,

(d) the relative density of the liquid.

For a floating body, its weight W and upthrust F_B on it are related as:

1. W > F_B
2. W < F_B
3. W = F_B
4. nothing can be said

When the weight of a body is greater than the weight of the liquid displaced, the body will

1. float
2. sink
3. float partially outside
4. first go down then come up

A body weighing W floats partially above and partially below the liquid when (F^'_B denotes maximum upthrust) :

1. W > F^'_B
2. W = F^'_B
3. W < F^'_B
4. none of these