Physics-
General
Easy

Question

A beaker containing water is kept on a spring scale. The mass of water and beaker is 5 kg. A block of mass 2 kg and specific gravity 10 is suspended by means of thread from a spring balance as shown. The readings of scales S subscript 1 end subscript and S subscript 2 end subscript are respectively [ Take g equals 10 text end text m divided by s to the power of 2 end exponent ]

  1. 52 N and 20 N    
  2. 50 N and 18 N    
  3. 52 N and 18 N    
  4. 50 N and 20 N    

The correct answer is: 52 N and 20 N

Related Questions to study

General
Physics-

A square plate of 0.1 meter side moves parallel to a second fixed plate with a velocity of 0.1 m/s, both plates being immersed in water. If the viscous force is 0.002 newtons and the coefficient of viscosity is 0.01 poise, distance between the plates in metre is

A square plate of 0.1 meter side moves parallel to a second fixed plate with a velocity of 0.1 m/s, both plates being immersed in water. If the viscous force is 0.002 newtons and the coefficient of viscosity is 0.01 poise, distance between the plates in metre is

Physics-General
General
Physics-

Through a very narrow gap of height h, a thin plate of large extension is pulled at a velocity v on one side of the plate there exists oil of viscosity mu subscript 1 end subscript and on the other side, oil of viscosity mu subscript 2 end subscript as shown. The position (y) of the plate so that (i) the shear force on the two sides of the plate is equal. (ii) the pull required to drag the plate is minimum respectively are

Through a very narrow gap of height h, a thin plate of large extension is pulled at a velocity v on one side of the plate there exists oil of viscosity mu subscript 1 end subscript and on the other side, oil of viscosity mu subscript 2 end subscript as shown. The position (y) of the plate so that (i) the shear force on the two sides of the plate is equal. (ii) the pull required to drag the plate is minimum respectively are

Physics-General
General
Physics-

A sliding fit cylindrical body of mass of 1 kg drops vertically down as shown in figure at a constant velocity of 5 cm/s. Find the coefficient of dynamic viscosity of the oil in pascal second.

A sliding fit cylindrical body of mass of 1 kg drops vertically down as shown in figure at a constant velocity of 5 cm/s. Find the coefficient of dynamic viscosity of the oil in pascal second.

Physics-General
parallel
General
Physics-

A non uniform cylinder of mass m, length 1 and radius r is having its centre of mass at a distance 1/4 from the centre and lying on the axis of the cylinder. The cylinder is kept in a liquid of uniform density rho. The moment of inertia of the rod about the centre of mass is I. The angular acceleration of point A relative to point B just after the rod is released from the position shown in figure is

A non uniform cylinder of mass m, length 1 and radius r is having its centre of mass at a distance 1/4 from the centre and lying on the axis of the cylinder. The cylinder is kept in a liquid of uniform density rho. The moment of inertia of the rod about the centre of mass is I. The angular acceleration of point A relative to point B just after the rod is released from the position shown in figure is

Physics-General
General
Physics-

A uniform rod OB of length 1 m, cross-sectional area 0.012 blank m to the power of negative 2 end exponent and relative density 2.0 is free to rotate about O in vertical plane. The rod is held with a horizontal string AB which can withstand a maximum tension of 45 N. The rod and string system is kept in water in equilibrium as shown in figure. The maximum value of angle alpha which the rod can make with vertical without breaking the string is

A uniform rod OB of length 1 m, cross-sectional area 0.012 blank m to the power of negative 2 end exponent and relative density 2.0 is free to rotate about O in vertical plane. The rod is held with a horizontal string AB which can withstand a maximum tension of 45 N. The rod and string system is kept in water in equilibrium as shown in figure. The maximum value of angle alpha which the rod can make with vertical without breaking the string is

Physics-General
General
Physics-

A hollow sphere of mass 50 kg and radius open parentheses fraction numerator 3 over denominator 40 pi end fraction close parentheses to the power of 1 divided by 3 end exponent blank m is immersed in a tank of water of density 10 to the power of 3 end exponent blank k g divided by m to the power of 3 end exponent. The sphere is tied to the bottom of tank by two wires A and B as shown and is equilibrium. Tension in wire A is open parentheses g equals 10 blank m divided by s to the power of 2 end exponent close parentheses

A hollow sphere of mass 50 kg and radius open parentheses fraction numerator 3 over denominator 40 pi end fraction close parentheses to the power of 1 divided by 3 end exponent blank m is immersed in a tank of water of density 10 to the power of 3 end exponent blank k g divided by m to the power of 3 end exponent. The sphere is tied to the bottom of tank by two wires A and B as shown and is equilibrium. Tension in wire A is open parentheses g equals 10 blank m divided by s to the power of 2 end exponent close parentheses

Physics-General
parallel
General
Physics-

A homogeneous solid cylinder of length L(L<H/2). Cross-sectional area A/5 is immersed such that it floats with its axis vertical at the liquid-liquid interface with length L/4 in the denser liquid as shown in the figure. The lower density liquid is open to atmosphere having pressure P subscript 0 end subscript. The density D of solid is given by

A homogeneous solid cylinder of length L(L<H/2). Cross-sectional area A/5 is immersed such that it floats with its axis vertical at the liquid-liquid interface with length L/4 in the denser liquid as shown in the figure. The lower density liquid is open to atmosphere having pressure P subscript 0 end subscript. The density D of solid is given by

Physics-General
General
Physics-

In this figure, an ideal liquid flows through the tube, which is of uniform cross-section. The liquid has velocities v subscript A end subscript and v subscript B end subscript, and pressure P subscript A end subscript and P subscript B end subscript at points A and B respectively

In this figure, an ideal liquid flows through the tube, which is of uniform cross-section. The liquid has velocities v subscript A end subscript and v subscript B end subscript, and pressure P subscript A end subscript and P subscript B end subscript at points A and B respectively

Physics-General
General
Physics-

A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration a towards right. Pressure is maximum at ____________

A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration a towards right. Pressure is maximum at ____________

Physics-General
parallel
General
Physics-

A large open top container of negligible mass and uniform cross-sectional area A has a small hole of cross-sectional area A/100 in its side wall near the bottom. The container is kept on a smooth horizontal floor and contains a liquid of density rho and mass m subscript 0 end subscript. Assuming that the liquid starts flowing out horizontally through the hole at t=0, calculate the acceleration of the container.

A large open top container of negligible mass and uniform cross-sectional area A has a small hole of cross-sectional area A/100 in its side wall near the bottom. The container is kept on a smooth horizontal floor and contains a liquid of density rho and mass m subscript 0 end subscript. Assuming that the liquid starts flowing out horizontally through the hole at t=0, calculate the acceleration of the container.

Physics-General
General
Physics-

A horizontal tube has different cross-section at two points A and B The diameters of the tube at points A and B are 4 cm and 2 cm respectively. The two manometers arms are fixed at points A and B. When a liquid of density 800 blank k g blank m to the power of negative 3 end exponent flows through the tube, the difference of pressure between the arms of manometer is 8 cm. Calculate the rate of flow of liquid nearly, deriving the necessary formula open parentheses g equals 9.8 blank m blank s to the power of negative 2 end exponent close parentheses

A horizontal tube has different cross-section at two points A and B The diameters of the tube at points A and B are 4 cm and 2 cm respectively. The two manometers arms are fixed at points A and B. When a liquid of density 800 blank k g blank m to the power of negative 3 end exponent flows through the tube, the difference of pressure between the arms of manometer is 8 cm. Calculate the rate of flow of liquid nearly, deriving the necessary formula open parentheses g equals 9.8 blank m blank s to the power of negative 2 end exponent close parentheses

Physics-General
General
Physics-

Figure shows how the stream of water emerging from a faucet "necks down" as it falls. Figure shows two levels separated by a vertical distance h. The cross-sectional areas A subscript 0 end subscript and A are marked in the figure. At what rate does water flow from the tap?

Figure shows how the stream of water emerging from a faucet "necks down" as it falls. Figure shows two levels separated by a vertical distance h. The cross-sectional areas A subscript 0 end subscript and A are marked in the figure. At what rate does water flow from the tap?

Physics-General
parallel
General
Physics-

Figure shows a U-tube of uniform cross-sectional area A accelerated with acceleration a as shown. If d is the separation between the limbs, then what is the difference in the level of the liquid in the U-tube ?

Figure shows a U-tube of uniform cross-sectional area A accelerated with acceleration a as shown. If d is the separation between the limbs, then what is the difference in the level of the liquid in the U-tube ?

Physics-General
General
Physics-

A ball of radius r and density rho falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is eta, the value of h is given by

A ball of radius r and density rho falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is eta, the value of h is given by

Physics-General
General
Physics-

Two capillary tubes of equal length and inner radii 2r and 4r respectively are added in series and a liquid flows through it. If the pressure difference between the ends of the whole system is 8.5 cm of mercury, find the pressure difference between the two ends of the first capillary tube.

Two capillary tubes of equal length and inner radii 2r and 4r respectively are added in series and a liquid flows through it. If the pressure difference between the ends of the whole system is 8.5 cm of mercury, find the pressure difference between the two ends of the first capillary tube.

Physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.