Part 1
ge and gp denote the acceleration due to gravity on the surface of the earth and on another planet whose mass and radius are twice to that of the earth. Then
20
Sep
ge and gp denote the acceleration due to gravity on the surface of the earth and on another planet whose mass and radius are twice to that of the earth. Then ge and gp denote the acceleration due to gravity on the surface of the earth and on another planet whose mass and radius are [...]
A man weighs 80kg on the surface of earth of radius R. At what height above the surface of earth his weight will be 40 kg?
20
Sep
A man weighs 80kg on the surface of earth of radius R. At what height above the surface of earth his weight will be 40 kg? A man weighs 80kg on the surface of earth of radius R. At what height above the surface of earth his weight will be 40 kg? September 20, 2020 [...]
Two concentric shells of uniform density of mass M1 and M2 are situated as shown in the figure. The forces experienced by a particle of mass m when placed at positions A,B and C respectively are (given OA=p, OB=q, and OC=r)
20
Sep
Two concentric shells of uniform density of mass M1 and M2 are situated as shown in the figure. The forces experienced by a particle of mass m when placed at positions A,B and C respectively are (given OA=p, OB=q, and OC=r) and OC=r) B and C respectively are (given OA=p OB=q Two concentric shells of [...]
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 [...]