1. Is the pressure at B greater than the pressure at A7 justify your answer Observe the diagram and answer the following a) b) Compare the pressure at A and C If water is replaced by glycerine, how would this affect the pressure at and D? The picture below shows two bricks and the same
Answers
Answer:
(a) The pressure at A is lesser than the pressure at B since P=ρgh where pressure P is directly proportional to height h. Hence, greater the height, greater shall be the pressure.
(b) False, pressure at B is not greater than at D, since pressure P=ρgh is independent of the area of container.
Since height h of both B and D is the same, pressure at the 2 points are equal.
(c) The pressure at A and C are equal since they are at equal heights. Since cross-sectional area of the container does not affect P=ρgh, A and C have the same pressure.
(d) If water was replaced with mercury, the pressure at A and D would increase because pressure is directly proportional to density P=ρgh and since D is lower than A, would have greater pressure than A.
Answer:
a) The pressure at A is lesser than the pressure at B since P=ρgh where pressure P is directly proportional to height h. Hence, greater the height, greater shall be the pressure.