With rise in temperature, density of a given body changes according to one of the following relations
  • A$\rho = {\rho _0}[1 + \gamma \,d\theta ]$
  • B$\rho = {\rho _0}[1 - \gamma \,d\theta ]$
  • C$\rho = {\rho _0}\gamma d\theta $
  • D$\rho = {\rho _0}/\gamma d\theta $
Medium
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    A $U$ tube with both ends open to the atmosphere, is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a distance of $10\,\, mm$ above the water level on the other side. Meanwhile the water rises by $65\,\, mm$ from its original level (see diagram). The density of the oil is ......... $kg/m^3$
    View Solution
  • 2
    The velocity of kerosene oil in a horizontal pipe is $5 m/s.$  If $g = 10m/{s^2}$ then the velocity head of oil will be ....... $m$
    View Solution
  • 3
    A highly viscous liquid of viscosity coefficient $\eta$ flows through a fixed horiwntal cylindrical tube (fixed from outer surface) of internal radius $r$, thickness $t (t << r)$ and length $l$. Volume of liquid flowing per;second is $Q$ and pressure difference across the tube is $P$. Modulus of rigidity of material of tube is $\beta$. Shear strain in the tube will be
    View Solution
  • 4
    $Assertion :$ The velocity of flow of a liquid is smaller when pressure is larger and vice-versa.
    $Reason :$ According to Bernoulli’s theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.
    View Solution
  • 5
    Water is flowing with a velocity of $2\,m/s$ in a horizontal pipe where cross-sectional area is $2 \times 10^{-2}\, m^2$ at pressure $4 \times 10^4\, pascal$. The pressure at cross-section of area $0.01\, m^2$ in pascal will be
    View Solution
  • 6
    Ajet of water having velocity $=$ $10 $ $m/s$ and stream cross-section $=$ $2$ $cm^2$ hits a flat plate perpendicularly, with the water splashing out parallel to plate. The plate experiences a force of ....... $N$
    View Solution
  • 7
    Which of the following is the incorrect graph for a sphere falling in a viscous liquid? (Given at $t = 0$, velocity $v = 0$ and displacement $x = 0$.) 
    View Solution
  • 8
    An $ L-$ shaped glass tube is just immersed in flowing water such that its opening is pointing against flowing water. If the speed of water current is $v$, then
    View Solution
  • 9
    Two cyllinders of same cross-section and length $L$ but made of two material of densities $d_1$ and $d_2$ are cemented together to form a cylinder of length $2L$. The combination floats in a liquid of density $d$ with $a$ length $L/2$ above the surface of the liquid. If $d_1 > d_2$ then:
    View Solution
  • 10
    A metal ball of density $7800\  kg/m^3$ is suspected to have a large number of cavities . It weighs $9.8$ $kg$ when weighed directly on a balance and $1.5$ $kg$ less when immersed in water . The fraction by volume of the cavities in the metal ball is approximately ....... $\%$
    View Solution