Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A glass rod of radius r 1is inserted symmetrically into a vertical capillary tube of radius r 2 such that their lower ends are at the same level. The arrangement is now dipped in water. The height to which water will rise into the tube will be (σ= surface tension of water, ρ= density of water)
11
Oct
A glass rod of radius r 1is inserted symmetrically into a vertical capillary tube of radius r 2 such that their lower ends are at the same level. The arrangement is now dipped in water. The height to which water will rise into the tube will be (σ= surface tension of water, ρ= density [...]
A large number of droplets, each of radius a, coalesce to form a bigger drop of radius b. Assume that the energy released in the process is converted into the kinetic energy of the drop. The velocity of the drop is (σ = surface tension, ρ = density)
11
Oct
A large number of droplets, each of radius a, coalesce to form a bigger drop of radius b. Assume that the energy released in the process is converted into the kinetic energy of the drop. The velocity of the drop is (σ = surface tension, ρ = density) A large number of droplets coalesce to [...]
A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ=0 o ), it appears to weigh 0.044N. But when the plate is greasy (θ = 180 o ), it appears to weigh 0.03 N. The surface tension of water is
11
Oct
A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ=0 o ), it appears to weigh 0.044N. But when the plate is greasy (θ = 180 o ), it appears to weigh 0.03 [...]
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A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ=0 o ) ,
it appears to weigh 0.03 N. The surface tension of water is ,
it appears to weigh 0.044N. But when the plate is greasy (θ = 180 o ) ,
A loop of 6.28 cm long thread is put gently on a soap film in a wire loop. The film is pricked with a needle inside the soap film enclosed by the thread. If the surface tension of soap solution is 0.030 N/m, then the tension in the thread is
11
Oct
A loop of 6.28 cm long thread is put gently on a soap film in a wire loop. The film is pricked with a needle inside the soap film enclosed by the thread. If the surface tension of soap solution is 0.030 N/m, then the tension in the thread is A number of droplets combine [...]
A drop of water of volume V is pressed between the two glass so as to spread to an area A. If T is the surface tension, the normal force required to seperate the glass plate is
11
Oct
A drop of water of volume V is pressed between the two glass so as to spread to an area A. If T is the surface tension, the normal force required to seperate the glass plate is A drop of water of volume V is pressed between the two glass so as to spread to [...]
A number of droplets , each of radius r , combine to form a drop of radius R. If T is the surface tension , the rise in temperature will be
11
Oct
A number of droplets , each of radius r , combine to form a drop of radius R. If T is the surface tension , the rise in temperature will be A number of droplets combine to form a drop of radius R. If T is the surface tension each of radius `r` the rise [...]
In the previous question, the force of attraction between the plates is ( Here (h) represent the height to which liquid rises).
11
Oct
In the previous question, the force of attraction between the plates is ( Here (h) represent the height to which liquid rises). In the previous question the force of attraction between the plates is ( Here (h) represent the height to which liquid rises). October 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Two vertical parallel glass plates are partially submerged in water. The distance between the plates is d and the length l. Assume that the water between the plates does not reach the upper edges of the plates and that the wetting is complete. Calculate the force of attraction between the plates. (ρ=density of water and σ= surface tension of water)
11
Oct
Two vertical parallel glass plates are partially submerged in water. The distance between the plates is d and the length l. Assume that the water between the plates does not reach the upper edges of the plates and that the wetting is complete. Calculate the force of attraction between the plates. (ρ=density of water and [...]
In Q.39, if water is replaced by another liquid of surface tension 2 sigma, then the force F of attraction between two plates would become
11
Oct
In Q.39, if water is replaced by another liquid of surface tension 2 sigma, then the force F of attraction between two plates would become if water is replaced by another liquid of surface tension 2 sigma In Q.39 then the force F of attraction between two plates would become October 11, 2020 Category: Uncategorised [...]
Consider vertical parallel of semi-circular cross section dipped in a liquid. Assume that the wetting of the tube is complete. The force of surface tension on the flat part and on curved part of the tube are in the ratio
11
Oct
Consider vertical parallel of semi-circular cross section dipped in a liquid. Assume that the wetting of the tube is complete. The force of surface tension on the flat part and on curved part of the tube are in the ratio Water rises to a height h in a capilliary tube of cross sectional area A. [...]