Tag: density of a fluid
Questions Related to density of a fluid
By cooling two liquids of equal volume from temperature $60 ^ { \circ } \mathrm { C }$ to $50 ^ { \circ } \mathrm { C }$ in same conditions time required are 324 and 810 sec respectively. If ratio of specific heat of both are 3:4. Then ratio of their. densities (water equivalent of calorimeter is negligible ):
The density of water at $4^oC$ in S.I. unit is $X\ kg m^{-3}$. Find $\dfrac{X}{250}$
The density of wood is 0.65 $ \displaystyle g\ cm^{3} $ in CGS system. Its density in SI system is
A sphere is dropped under gravity through a fluid of viscosity $h$. If the average acceleration is half of the initial acceleration, the time to attain the terminal velocity is $(r=density\ of\ sphere,r=radius)$
The unit of density in MKS and CGS system respectively are:
$1\ kg/m^3$ is equal to
A cylinder of radius R full of liquid of density $\rho$ is rotated about its axis at $\omega$ rad/s. The increase in pressure at the centre of the cylinder will be
Two solids A and B having same volume float in water. It is observed that A floats with half its volume immersed and B floats with $1/3^{rd}$ of its volume immersed. Compare the densities of A and B.
Equal masses of three liquid are kept in there identical cylindrical vessels $A, B$ and $C$. There densities are $\rho _{A}, \rho _{B}$ and $\rho _{C}$ with $\rho _{A} < \rho _{B} < \rho _{C}$. The force on the base will be
The value of $g$ on the surface of earth is 9.8 $m / s ^ { 2 }$ and the radius of earth is $6400km$. The average density of earth in $k g / m ^ { 3 }$ will be