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The time dependence of a physical quantity P is given by P = P0e^-alpha t^2, where alpha is a constant and t is time. Then constant alpha is/has
15
Sep
The time dependence of a physical quantity P is given by P = P0e^-alpha t^2, where alpha is a constant and t is time. Then constant alpha is/has The time dependence of a physical quantity P is given by P = P0e^-alpha t^2 where alpha is a constant and t is time. Then constant alpha [...]
Two ideantical point charges are placed at a separation of d. P is a point on the line joining the charges, at a distance x from any one charge. The field at P is E,E is plotted against x for value of x from close to zero to slightly less then d. Which of the following represents the resulting curve
15
Sep
Two ideantical point charges are placed at a separation of d. P is a point on the line joining the charges, at a distance x from any one charge. The field at P is E,E is plotted against x for value of x from close to zero to slightly less then d. Which of the [...]
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at a distance x from any one charge. The field at P is E ,
E is plotted against x for value of x from close to zero to slightly less then d. Which of the following represents the resulting curve ,
Two ideantical point charges are placed at a separation of d. P is a point on the line joining the charges ,
The lines of force of the electric field due to two charges q and Q are sketched in the figure. state if
15
Sep
The lines of force of the electric field due to two charges q and Q are sketched in the figure. state if The lines of force of the electric field due to two charges q and Q are sketched in the figure. state if September 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
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:
15
Sep
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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Cengage JEE Mains Physics by B.M Sharma
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Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
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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: ,
The position x of a particle at time t is given by x = V0/a (1 – e^-at), where V0 is constant and a > 0. The dimensions of V0 and a are
15
Sep
The position x of a particle at time t is given by x = V0/a (1 – e^-at), where V0 is constant and a > 0. The dimensions of V0 and a are The position x of a particle at time t is given by x = V0/a (1 - e^-at) where V0 is constant [...]
A straw 6 cm long floats on water. The water film on one side has surface tension of 50 dyn/cm. On the other slide, camphor reduces the surface tension to 40 dyn/cm. The resultant force acting on the straw is
15
Sep
A straw 6 cm long floats on water. The water film on one side has surface tension of 50 dyn/cm. On the other slide, camphor reduces the surface tension to 40 dyn/cm. The resultant force acting on the straw is A straw 6 cm long floats on water. The water film on one side has [...]
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)
15
Sep
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 form a bigger drop [...]
A glass rod of radius r1 is inserted symmetrically into a vertical capillary tube of radius r2 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)
15
Sep
A glass rod of radius r1 is inserted symmetrically into a vertical capillary tube of radius r2 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) [...]
Consider the four field patterns shown. Assuming there are no charges in the regions shown, which of the patterns represents a possible electrostatic field
15
Sep
Consider the four field patterns shown. Assuming there are no charges in the regions shown, which of the patterns represents a possible electrostatic field Consider the four field patterns shown. Assuming there are no charges in the regions shown which of the patterns represents a possible electrostatic field September 15, 2020 Category: Uncategorised (JEE Advanced [...]
Two soap bubbles, one of radius 50 mm and the other of radius 80 mm, are brought in contact so that they have a common interface. The radius of the curvature of the common interface is
15
Sep
Two soap bubbles, one of radius 50 mm and the other of radius 80 mm, are brought in contact so that they have a common interface. The radius of the curvature of the common interface is are brought in contact so that they have a common interface. The radius of the curvature of the common [...]