Cengage JEE Mains Physics by B.M Sharma

An iceberg is floating partially immersed in sea water. The density of sea water is 1.03gcm^−3 and that of ice is 0.92 g/cm^−3. The approximate percentage of total volume of iceberg above the level of sea water is A hole is made at the bottom of the tank filled with water (density 1000kg/m^3) If the [...]

A wooden rod of a uniform cross section and of length 120 cm is hinged at the bottom of the tank which is filled with water to a height of 40cm. In the equilibrium position, the rod makes an angle of 60 with the vertical. The center of buoyancy is located on the rod at [...]

A tube 1cm^2 in cross section is attached to the top of a vessel 1cm high and of cross section 100 cm^2. Water is poured into the system filling it to a depth of 100cm above the bottom of the vessel as shown in the figure. Take g=10ms^−2. Find the correct statement. A hole is [...]

A block of wood is floating in water in a closed vessel as shown in the figure. The vessel is connected to an air pump. When more air is pushed into the vessel, the block of wood floats with (neglect compressibility of water) A block of wood is floating in water in a closed vessel [...]

A cylindrical block is floating (partially submerged) in a vessel containing water. Initially, the platform on which the vessel is mounted is at rest. Now the platform along with the vessel is allowed to fall freely under gravity. As a result, the buoyancy force: A cylindrical block is floating (partially submerged) in a vessel containing [...]

A vessel contains oil (density =0.8gm/cm^3) over mercury (density =13.6g/cm^3). A homogeneous sphere floats with half its volume immersed in mercury and the other half in oil. The density of the material of the sphere in gm/cm^3 is A hole is made at the bottom of the tank filled with water (density 1000kg/m^3) If the [...]

A block of silver of mass 4 kg hanging from a string is immersed in a liquid of relative density 0.72. If relative density of silver is 10, then tension in the string will be [take g=10m/s^2] A block of silver of mass 4 kg hanging from a string is immersed in a liquid of [...]

An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom p2​ is the same as it is at the top p1​. If the velocity of the top v1​= 2 m/s. Then the ratio of areas A1​. A2​ is A hole is made at the bottom [...]

The tension in a string holding a solid block below the surface of a liquid (Where ρliquid > ρblock) as shown in figure is T when the system is at rest. What will be the tension in the string if the system has an upward acceleration a? A hole is made at the bottom of [...]

In a cylindrical water tank there are two small holes Q and P on the wall at a depth of h1​ from the upper level of water and at a height of h2​ from the lower end of the tank, respectively, as shown in the figure. Water coming out from both the holes strike the [...]