Chapter 13 – Fluid Mechanics
Two balls, each of radius R, equal mass and density are placed in contact, then the force of gravitation between them is proportional to
20
Sep
Two balls, each of radius R, equal mass and density are placed in contact, then the force of gravitation between them is proportional to each of radius `r` equal mass and density are placed in contact then the force of gravitation between them is proportional to Two balls September 20, 2020 Category: Chapter 13 - [...]
The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity ω. The acceleration due to the gravity on planet’s surface will be
20
Sep
The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity ω. The acceleration due to the gravity on planet’s surface will be The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity ω. [...]
Water rises to a height of 10cm in a capillary tube and mercury falls to a depth of 3.42 cm in the same capillary tube. If the density of mercury is 13.6g/c.c. and the angles of contact for mercury and water are 135 degree and 0 degree respectively, the ratio of surface tension for water and mercury is
20
Sep
Water rises to a height of 10cm in a capillary tube and mercury falls to a depth of 3.42 cm in the same capillary tube. If the density of mercury is 13.6g/c.c. and the angles of contact for mercury and water are 135 degree and 0 degree respectively, the ratio of surface tension for water [...]
A vessel, whose bottom has round holes with diameter 0.1 mm, is filled with water. The maximum height up to which water can be filled without leakage is
20
Sep
A vessel, whose bottom has round holes with diameter 0.1 mm, is filled with water. The maximum height up to which water can be filled without leakage is A vessel is filled with water. The maximum height up to which water can be filled without leakage is whose bottom has round holes with diameter 0.1 [...]
Find the time taken by the soap bubble, blown at the end of a capillary tube of radius r and length l for the radius of the soap bubble to decrease from R1 to R2 (R1> R2). Coefficient of viscosity of air is n and moving with the same velocity as object.
20
Sep
Find the time taken by the soap bubble, blown at the end of a capillary tube of radius r and length l for the radius of the soap bubble to decrease from R1 to R2 (R1> R2). Coefficient of viscosity of air is n and moving with the same velocity as object. Find the time [...]
A plate of area 500 cm^2 is lying on the layer of oil of thickness 3mm. Calculate the horizontal force required to move the plate with a constant velocity of 5 cm/sec. Coefficient of viscosity of oil is 1.9 Ns m^-2
20
Sep
A plate of area 500 cm^2 is lying on the layer of oil of thickness 3mm. Calculate the horizontal force required to move the plate with a constant velocity of 5 cm/sec. Coefficient of viscosity of oil is 1.9 Ns m^-2 then what will be the new terminal velocity ? Two identical water drops are [...]
Two identical water drops are falling down in the air with a terminal velocity v. If the two drops combine and from a single drop, then what will be the new terminal velocity ?
20
Sep
Two identical water drops are falling down in the air with a terminal velocity v. If the two drops combine and from a single drop, then what will be the new terminal velocity ? then what will be the new terminal velocity ? Two identical water drops are falling down in the air with a [...]
A cylindrical container has three horizontal tubes of length 21cm each, at height 0 cm, 5cm and 10 cm from the base as shown. The level of water in the cylindrical vessel is kept constant at 40 cm. Find the length of the equivalent tube at the base having same radius as that of the three tubes.
20
Sep
A cylindrical container has three horizontal tubes of length 21cm each, at height 0 cm, 5cm and 10 cm from the base as shown. The level of water in the cylindrical vessel is kept constant at 40 cm. Find the length of the equivalent tube at the base having same radius as that of the [...]
A cylindrical tank of height H is open at the top end and it has a radius r. Water is filled in it up to a height of h. The time taken to empty the tank through a hole of radius r’ in its bottom is
20
Sep
A cylindrical tank of height H is open at the top end and it has a radius r. Water is filled in it up to a height of h. The time taken to empty the tank through a hole of radius r’ in its bottom is A cylindrical tank of height H is open at [...]
An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom p2 is the same as it is at the top p1. If the velocity of the top v1=2m/s. Then the ratio of areas A1 : A2 is
20
Sep
An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom p2 is the same as it is at the top p1. If the velocity of the top v1=2m/s. Then the ratio of areas A1 : A2 is In a tube of radius 5 cm the [...]