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In Fig force F is gradually increased from zero Draw the graph between applied force F and tension T is the string . The coefficient of string friction between the block and the ground is mu(s)
29
Aug
In Fig force F is gradually increased from zero Draw the graph between applied force F and tension T is the string . The coefficient of string friction between the block and the ground is mu(s) In Fig force F is gradually increased from zero Draw the graph between applied force F and tension T [...]
A certain number of spherical drops of a liquid of radius ‘r’ coalesce to form a single drop of radius ‘R’ and volume ‘V’. If ‘T’ is the surface tension of the liquid, then:
29
Aug
A certain number of spherical drops of a liquid of radius ‘r’ coalesce to form a single drop of radius ‘R’ and volume ‘V’. If ‘T’ is the surface tension of the liquid, then: A certain number of spherical drops of a liquid of radius 'r' coalesce to form a single drop of radius 'R' [...]
Three liquids of densities p1,p2 and p3 (with p1 p2 p3) having the same value of surface tension T, rise to the same height in three identical capillaries The angles of contact θ1,θ2 and θ3 obey:-
29
Aug
Three liquids of densities p1,p2 and p3 (with p1 p2 p3) having the same value of surface tension T, rise to the same height in three identical capillaries The angles of contact θ1,θ2 and θ3 obey:- p2 and p3 (with p1 p2 p3) having the same value of surface tension T rise to the same [...]
A block of mass 1kg is at rest on a rough horizontal surface having coefficient of static friction 0.2 and kinetic friction 0.15
29
Aug
A block of mass 1kg is at rest on a rough horizontal surface having coefficient of static friction 0.2 and kinetic friction 0.15 A block of mass 1kg is at rest on a rough horizontal surface having coefficient of static friction 0.2 and kinetic friction 0.15 August 29, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
A rectangular film of liquid is extended from (4 cm x 2 cm) to (5 cm x 4 cm). If the work done is 3 × 10^−4 J, the value of the surface tension of the liquid is
29
Aug
A rectangular film of liquid is extended from (4 cm x 2 cm) to (5 cm x 4 cm). If the work done is 3 × 10^−4 J, the value of the surface tension of the liquid is A rectangular film of liquid is extended from (4 cm x 2 cm) to (5 cm x [...]
A block of weight 100n lies on the horizontal surface just begins to move when a horizontal force of 25N acts on it. Determine the coefficient of static friction.
29
Aug
A block of weight 100n lies on the horizontal surface just begins to move when a horizontal force of 25N acts on it. Determine the coefficient of static friction. find the acceleration of masses m(1) m(2) and m(3). Just after the string is cut at point A. Three blocks arranged with pulley and spring as [...]
A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface tension of 2.5 × 10^−2N/m. The pressure inside the bubble equals at a point Z0 below the free surface of water in a container. Taking g = 10 m/s^2, density of water = 103 kg/m^3, the value of Z0 is :
29
Aug
A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface tension of 2.5 × 10^−2N/m. The pressure inside the bubble equals at a point Z0 below the free surface of water in a container. Taking g = 10 m/s^2, density of water = 103 kg/m^3, the value of [...]
A small hole of an area of cross-section 2 mm^2 is present near the bottom of a fully filled open tank of height 2 m. Taking g = 10 m/s^2, the rate of flow of water through the open hole would be nearly.
29
Aug
A small hole of an area of cross-section 2 mm^2 is present near the bottom of a fully filled open tank of height 2 m. Taking g = 10 m/s^2, the rate of flow of water through the open hole would be nearly. A small hole of an area of cross-section 2 mm^2 is present [...]
Three blocks arranged with pulley and spring as shown in fig. If the string connecting blocks m(2) and m(3) is cut at point A, find the acceleration of masses m(1), m(2) and m(3). Just after the string is cut at point A.
29
Aug
Three blocks arranged with pulley and spring as shown in fig. If the string connecting blocks m(2) and m(3) is cut at point A, find the acceleration of masses m(1), m(2) and m(3). Just after the string is cut at point A. find the acceleration of masses m(1) m(2) and m(3). Just after the string [...]
A U tube with both end open to the atmosphere, is partially filled with water, Oil, which is immiscible with water, is poured into one side until it stands at a distance of 10 mm above the water level on the other side. Meanwhile the water rises by 65 mm from its original level (see diagram). The density of the oil is:
29
Aug
A U tube with both end open to the atmosphere, is partially filled with water, Oil, which is immiscible with water, is poured into one side until it stands at a distance of 10 mm above the water level on the other side. Meanwhile the water rises by 65 mm from its original level (see [...]
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A U tube with both end open to the atmosphere ,
A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250 m^2. Assuming that the pressure inside the house is atmospheric pressure ,
is partially filled with water ,
Oil ,
the force exerted by the wind on the roof and the direction of the force will be (ρair=1.2 kg/m^3) ,
which is immiscible with water ,