Cengage JEE Mains Physics by B.M Sharma
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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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 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 [...]
The angular velocity of a particle moving in a circle of radius 50 cm is increased in 5 min from 100 revolutions per minute to 400 revolutions per minute. Find the tangential acceleration of the particle.
05
Sep
The angular velocity of a particle moving in a circle of radius 50 cm is increased in 5 min from 100 revolutions per minute to 400 revolutions per minute. Find the tangential acceleration of the particle. A particle is projected with certain velocity at an angle α above the horizontal from the foot of an [...]
A body is moving in a circle with a speed of 1ms^−1. This speed increases at a constant rate of 2ms^−1 every second. Assume that the radius of the circle described is 25 m. The total acceleration of the body after 2s is:
05
Sep
A body is moving in a circle with a speed of 1ms^−1. This speed increases at a constant rate of 2ms^−1 every second. Assume that the radius of the circle described is 25 m. The total acceleration of the body after 2s is: A particle is projected with certain velocity at an angle α above [...]
In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to
05
Sep
In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to September 5, 2020 Category: Cengage JEE Mains Physics by [...]
A particle is projected with certain velocity at an angle α above the horizontal from the foot of an inclined plane of inclination 30 . If the particle strikes the plane normally then α is equal to
05
Sep
A particle is projected with certain velocity at an angle α above the horizontal from the foot of an inclined plane of inclination 30 . If the particle strikes the plane normally then α is equal to A particle is projected with certain velocity at an angle α above the horizontal from the foot of [...]