Chapter 12 – Fluid Mechanics, Surface Tension and Viscosity
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
There is a circular tube in a vertical plane. Two liquids which do not mix and of densities d1 and d2 are filled in the tube. Each liquid subtends 90 degree angle at centre. Radius joining their interface makes an angle α with vertical . The ratio d1/d2 is
12
Sep
There is a circular tube in a vertical plane. Two liquids which do not mix and of densities d1 and d2 are filled in the tube. Each liquid subtends 90 degree angle at centre. Radius joining their interface makes an angle α with vertical . The ratio d1/d2 is A spherical solid ball of volume [...]
An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional 46 cm. What will be length of the air column above mercury in the tube now? (Atmospheric pressure = 76 cm of Hg)
12
Sep
An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional 46 cm. What will be length of the air column above mercury [...]
Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remain unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is T, density of liquid is ρ and L is its latent heat of vaporization.
12
Sep
Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remain unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is T, density of liquid is ρ and L is its latent heat of vaporization. Assume that a drop [...]
A uniform cylinder of length L and mass M having cross-sectional area A is suspended, with its length vertical, from a fixed point by a massless spring, such that it is half submerged in a liquid of density σ at equilibrium position. The extension x0 of the spring when it is in equilibrium, is
12
Sep
A uniform cylinder of length L and mass M having cross-sectional area A is suspended, with its length vertical, from a fixed point by a massless spring, such that it is half submerged in a liquid of density σ at equilibrium position. The extension x0 of the spring when it is in equilibrium, is A [...]
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A uniform cylinder of length L and mass M having cross-sectional area A is suspended ,
from a fixed point by a massless spring ,
is ,
such that it is half submerged in a liquid of density σ at equilibrium position. The extension x0 of the spring when it is in equilibrium ,
with its length vertical ,
Work done in increasing the size of a soap bubble from a radius of 3 cm to 5 cm is nearly (Surface tension of soap solution =0.03 Nm^−1):
12
Sep
Work done in increasing the size of a soap bubble from a radius of 3 cm to 5 cm is nearly (Surface tension of soap solution =0.03 Nm^−1): Work done in increasing the size of a soap bubble from a radius of 3 cm to 5 cm is nearly (Surface tension of soap solution =0.03 [...]
A spherical solid ball of volume V is made of a material of density ρ1 It is falling through a liquid of density ρ1(ρ2 0). The terminal speed of the ball is :
12
Sep
A spherical solid ball of volume V is made of a material of density ρ1 It is falling through a liquid of density ρ1(ρ2 0). The terminal speed of the ball is : A spherical solid ball of volume V is made of a material of density ρ1 It is falling through a liquid of [...]
A cylinder of height 20 m is completely filled with water. The velocity of efflux of water (in ms^−1) through a small hole on the side wall of the cylinder near its bottom is:
12
Sep
A cylinder of height 20 m is completely filled with water. The velocity of efflux of water (in ms^−1) through a small hole on the side wall of the cylinder near its bottom is: A cylinder of height 20 m is completely filled with water. The velocity of efflux of water (in ms^−1) through a [...]
An object of weight W and density ρ is dipped in a fluid of density ρ1. Its apparent weight will be
12
Sep
An object of weight W and density ρ is dipped in a fluid of density ρ1. Its apparent weight will be An object of weight W and density ρ is dipped in a fluid of density ρ1. Its apparent weight will be September 12, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]