Physics-
General
Easy
Question
Which of the following is the incorrect graph for a sphere falling in a viscous liquid? (Given at t = 0, velocity v = 0 and displacement x = 0.)
The correct answer is:
Related Questions to study
physics-
A cubical block of side ‘a’ and density ‘
’ slides over a fixed inclined plane with constant velocity ‘v’. There is a thin film of viscous fluid of thickness ‘t’ between the plane and the block. Then the coefficient of viscosity of the thin film will be:
A cubical block of side ‘a’ and density ‘’ slides over a fixed inclined plane with constant velocity ‘v’. There is a thin film of viscous fluid of thickness ‘t’ between the plane and the block. Then the coefficient of viscosity of the thin film will be:
physics-General
physics-
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/ 2 and 3h/2 from the surface of lighter liquid. If 
are the velocities of a flux at these two holes, then 
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/ 2 and 3h/2 from the surface of lighter liquid. If are the velocities of a flux at these two holes, then
physics-General
physics-
In a cylindrical vessel containing liquid of density , there are two holes in the side walls at heights of 
respectively such that the range of efflux at the bottom of the vessel is same. The height of a hole, for which the range of efflux would be maximum, will be
In a cylindrical vessel containing liquid of density , there are two holes in the side walls at heights of respectively such that the range of efflux at the bottom of the vessel is same. The height of a hole, for which the range of efflux would be maximum, will be
physics-General
physics-
In the case of a fluid, Bernoulli's theorem expresses the application of the principle of conservation of :
In the case of a fluid, Bernoulli's theorem expresses the application of the principle of conservation of :
physics-General
physics-
Water is flowing steadily through a horizontal tube of non uniform cross-section. If the pressure of water 
at a point where cross-section is 
and velocity of flow is 2 m/s, what is pressure at a point where cross-section reduces to 
Water is flowing steadily through a horizontal tube of non uniform cross-section. If the pressure of water at a point where cross-section is and velocity of flow is 2 m/s, what is pressure at a point where cross-section reduces to
physics-General
physics-
There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container
There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container
physics-General
physics-
A body having volume V and density is attached to the bottom of a container as shown. Density of the liquid is d 
. Container has a constant upward acceleration a. Tension in the string is
A body having volume V and density is attached to the bottom of a container as shown. Density of the liquid is d . Container has a constant upward acceleration a. Tension in the string is
physics-General
physics-
The temperature at which the fahrenheit scale reading is equal to twice celsius scale reading is ....
The temperature at which the fahrenheit scale reading is equal to twice celsius scale reading is ....
physics-General
physics-
A block of mass 15 kg is resting on a rough inclined plane. The block is tied by a horizontal string which has a tension of 50 N. The coefficient of friction between the surfaces of contact is..
A block of mass 15 kg is resting on a rough inclined plane. The block is tied by a horizontal string which has a tension of 50 N. The coefficient of friction between the surfaces of contact is..
physics-General
physics-
Three blocks A,B and C of equal mass m are placed one over the other on a frictionless surface. The coefficient of friction between any blocks A,B and C is 
. The maximum value of mass of block D so that the blocks A,B and C move without slipping over each other is
Three blocks A,B and C of equal mass m are placed one over the other on a frictionless surface. The coefficient of friction between any blocks A,B and C is . The maximum value of mass of block D so that the blocks A,B and C move without slipping over each other is
physics-General
physics-
Find the least horizontal force P to start motion of any part of the system of the three blocks resting upon one another. The weights of blocks are A = 300N, B= 100N and C= 200N. Between A and B the coefficient of friction is 0.3, between B and C is 0.2 and between C and the ground is 0.1
Find the least horizontal force P to start motion of any part of the system of the three blocks resting upon one another. The weights of blocks are A = 300N, B= 100N and C= 200N. Between A and B the coefficient of friction is 0.3, between B and C is 0.2 and between C and the ground is 0.1
physics-General
physics-
A block of mass m, lying on a horizontal plane, is acted upon by a horizontal force P and another force Q, inclined at an angle Q to the vertical. The block will remain in equilibrium if the coefficient of friction between block and the surface is (P > Q)
A block of mass m, lying on a horizontal plane, is acted upon by a horizontal force P and another force Q, inclined at an angle Q to the vertical. The block will remain in equilibrium if the coefficient of friction between block and the surface is (P > Q)
physics-General
physics-
Two blocks A and B of masses 6 kg and 3kg rest on a smooth horizontal surface as shown in figure. If coefficient of friction between A and B is 0.4, the maximum horizontal force which can make them move without separation is...
Two blocks A and B of masses 6 kg and 3kg rest on a smooth horizontal surface as shown in figure. If coefficient of friction between A and B is 0.4, the maximum horizontal force which can make them move without separation is...
physics-General
physics-
Two boxes of same material start moving on a surface, one with a velocity of 
and another with a velocity v. If the ratio of stopping times for the two boxes is 1:3, then the value of v is..
Two boxes of same material start moving on a surface, one with a velocity of and another with a velocity v. If the ratio of stopping times for the two boxes is 1:3, then the value of v is..
physics-General
physics-
A block B is pushed momentarily along a horizontal surface with a coefficient of sliding friction μ between B and the surface Block B will come to rest after a time.
A block B is pushed momentarily along a horizontal surface with a coefficient of sliding friction μ between B and the surface Block B will come to rest after a time.
physics-General
