b Bernoulli d Torricelli PRESSURE 1 Pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and the walls by of containing vessel This law was first formulated 7 Two syringes of different cross section wat needle filled with water are connected with a tigh the smaller piston and larger piston are 1 cm an fitted rubber tube filled with water Diameters 3 cm respectively If a force of 10 N is applied to the smaller piston then the force exerted on the large a Reynolds c Pascal piston is a 30 N b 60 N c 90 N d 100 8 In question number 7 if the smaller piston is pushe in through 6 cm how much does the longer piston move out 2 Which of the following conversions is correct a 1 atm 1 01 x 10 Pa b 1 mm of Hg 133 Pa c 1 bar 107 Pa d 1 torr 10 Pa 3 Pressure is a scalar quantity because a it is the ratio of force to area and both force and area are vectors b it is the ratio of the magnitude of the force to area c it is the ratio of the component of the force normal to the area d it depends on the size of the area chosen 4 Pressure at a point inside a liquid does not depend on a the nature of the liquid b shape of the container c the depth of point below the surface of the liquid d acceleration due to gravity at that point The two femurs each of cross sectional area 10 cm support the upper part of a human body of mass 40 kg The average pressure sustained by the femurs is Take g 10 m s a 2x 10 Nm c 2 x 10 Nm b 2x 10 Nm d 2 x 10 N m pressure exerted by the heel on is Take g 10 ms 2 a 6 4 x 10 Pa c 6 4 x 10 Pa A 50 kg girl wearing heel shoes balances on a single heel The heel is circular with a diameter 1 cm The cm cm c cm cm 9 To what height should a cylindrical vessel be filled with a homogeneous liquid to make the force with which the liquid pressure on the sides of the vesse equal to the force exerted by the liquid on the bottom of the vessel a Equal to the radius c More than radius a 0 6 Water 10 A U tube contains water and methylated spirt separated by mercury The mercury columns in the two arms are at the same level with 10 cm of water in one arm and 12 5 cm of spirit in the other as shown in figure The relative density of the spirit is Down b 0 8 10 cm the horizontal fo b 6 4 x 10 Pa d 6 4 10 Pa b Less than radius d Four times of radius 12 5 cm EXCHGHES c 1 0 Spirit Mercury d 1 25