Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by another ball of the same mass but half the radius, then the terminal velocity will be (neglect the effect of buoyancy)
11
Oct
A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by another ball of the same mass but half the radius, then the terminal velocity will be (neglect the effect of buoyancy) A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by [...]
A ball rises to the surface of a liquid with constant velocity. The density of the liquid is four time the density of the material of the ball. the frictional force of the liquid on the rising ball is greater than the weight of the ball by a factor of
11
Oct
A ball rises to the surface of a liquid with constant velocity. The density of the liquid is four time the density of the material of the ball. the frictional force of the liquid on the rising ball is greater than the weight of the ball by a factor of A film of soap solution [...]
A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of the liquid shall change nearly by
11
Oct
A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of the liquid shall change nearly by A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is [...]
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7 × 10^−2 N/m. The diameter of the hole is
11
Oct
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7 × 10^−2 N/m. The diameter of the hole is A hollow sphere [...]
The angle of contact between glass and water is 0∘ and water (surface tension 70 dyn/cm) rises in a glass capillary up to 6cm. Another liquid of surface tension 140 dyn/cm, angle of contact 60∘ and relative density 2 will rise in the same capillary up to
11
Oct
The angle of contact between glass and water is 0∘ and water (surface tension 70 dyn/cm) rises in a glass capillary up to 6cm. Another liquid of surface tension 140 dyn/cm, angle of contact 60∘ and relative density 2 will rise in the same capillary up to angle of contact 60∘ and relative density 2 [...]
A film of soap solution is trapped between a vertical frame and a light wire ab of length 0.1 m. If g = 10 m/s ^ 2 , then the load W that should be suspended from the wire to keep it in equilibrium is
11
Oct
A film of soap solution is trapped between a vertical frame and a light wire ab of length 0.1 m. If g = 10 m/s ^ 2 , then the load W that should be suspended from the wire to keep it in equilibrium is A film of soap solution is trapped between a vertical [...]
The lower end of a capilliary tube is at a depth of 12 cm and water rises 3 cm in it. The mouth pressure required to blow an air bubble at the lower end will be x cm of water column, where x is
11
Oct
The lower end of a capilliary tube is at a depth of 12 cm and water rises 3 cm in it. The mouth pressure required to blow an air bubble at the lower end will be x cm of water column, where x is The lower end of a capilliary tube is at a depth [...]
A soap flim of surface tension 3 x 10^-2 formed in a rectangular frame can support a straw as shown in figure. If g = 10 m/s^2, the mass of the straw is
11
Oct
A soap flim of surface tension 3 x 10^-2 formed in a rectangular frame can support a straw as shown in figure. If g = 10 m/s^2, the mass of the straw is A soap flim of surface tension 3 x 10^-2 formed in a rectangular frame can support a straw as shown in figure. [...]
A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel. If an extra 3.103 gf is required to pull it away from water, the surface tension of water is
11
Oct
A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel. If an extra 3.103 gf is required to pull it away from water, the surface tension [...]
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A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance ,
so that it comes in contact with the water in a glass vessel. If an extra 3.103 gf is required to pull it away from water ,
the surface tension of water is: ,
Two glass plates are separated by water. If surface tension of water is 75 dyn/cm and the area of each plate wetted by water is 8 cm^2 and the distance between the plates is 0.12 mm, then the force applied to separate the two plates is
11
Oct
Two glass plates are separated by water. If surface tension of water is 75 dyn/cm and the area of each plate wetted by water is 8 cm^2 and the distance between the plates is 0.12 mm, then the force applied to separate the two plates is then the force applied to separate the two plates [...]