[" A cube is immersed in kerosene "],[" and water at rest without any "],[" external force as shown.To keep it "],[" completely submerged in water,we "],[" need to apply an extra force at "4N" ."],[" If it was initially submerged to "],[" depth of "(a)/(4)" in kerosene,what is the "],[" length 'a' of the side of cube (in "],[cm" )? "]

A solid cube just gets completely immersed in water when a 0.2 kg mass is placed on it. If the mass is removed, the cube is 2 cm above the water level. What is the length of each side of the cube? (a) 6 cm (b) 8 cm (c) 10 cm (d) 12 cm

A rectangular container, whose base is a square of side 5cm, stands on a horizontal table, and holds water upto 1cm from the top. When a cube is placed in the water it is completely submerged, the water rises to the top and 2 cubic cm of water overflows. Calculate the volume of the cube and also the length of its edge.

A rectangular container, whose base is a square of side 5cm, stands on a horizontal table, and holds water upto 1 cm from the top. When a cube is placed in the water it is completely submerged, the water rises to the top and 2 cubic cm of water overflows. Calculate the volume of the cube and also the length of its edge.

An ice cube of side 1 cm is floating at the interface of kerosene and water in a beaker of base area 10 cm^(2) . The level of kerosene is just covering the top surface of the ice cube. a. Find the depth of submergence in the kerosene and that in the water. b. Find the change in the total level of the liquid when the whole ice melts into water.

(a). A cube of side 5 cm is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Given reason for each case. (b). A ball weghing 4 kg of density 4000 kg//m^(3) is completely immersed in water of density 10^(3)kg//m^(3) find the force of buoyancy on it. (given g=10m//s^(2))

Tangential forces of magnitude 4 xx 10^(8) N are applied to the opposite faces of a metal cube of side 0.5 m. What is the shear stress on the cube ?

A convex lens of glass (n=(3)/(2)) has a focal length 20 cm. The lens is immersed in water of refractive index (4)/(3) . What is the change in the power of convex lens ?

A wooden cube is found to float in water with ½cm of its vertical side above the water. On keeping a weight of 50 gm over its top, it is just submerged in the water. The specific gravity of wood is

Figure shows a hollow cube of side 'a' and volume 'V' . There is a small chamber of volume V//4 in the cube as shown. The chamber is completely filled by in kg of water. Water leaks through a hole H and spreads in the whole cube. Then the work done by gravity in this process assuming that the complete water finally lies at the bottom of the cube is