A hollow spherical shell at outer radius "R" floats just submerged under the water surface. The inner radius of the shell is "r" .If the specific gravity of the shell material is `(27)/(8)` with respect to water, the value of "r" is

A hollow spherical body of inner and outer radii 6 cm, and 8 cm respectively floats half submerged in water. Find the density of the material of the sphere.

A shell of relative density 27/9 w.r.t water is just submerged in water. If its inner & outer radius is r and R then r/R is

A shell of relative density 27/9 w.r.t water is just submerged in water. If its inner & outer radius is r and R then r is

A metallic spherical shell has mas m , radius R and Bulk modulus of elasticity B . The change in radius of the shell due to gravitational pressure

If radius of second shell of Li^(+2) ion is R , then the radius of its third shell will be :-

A metallic spherical shell has an inner radius R_(1) and outer radius R_(2) . A charge is placed at the centre of the spherical cavity. The surface charge density on the inner surface is

A thin uniform cylindrical shell, closed at both ends, is partially filled with water. It is floating vertically in water in half-submerged state. If rho_c is the relative density of the material of the shell with respect to water, then the correct statement is that the shell is

A thin uniform cylindrical shell, closed at both ends, is partially filled with water. It is floating vertically in water in half-submerged state. If rho_c is the relative density of the material of the shell with respect to water, then the correct statement is that the shell is

A thin spherical shell of radius R has charge Q spread uniformly over its surface. Which of the following graphs most closely represents the electric field E(r) produced by the shell in the range 0lerltoo , where r is the distance from the centre of the shell?