Physics-
General
Easy
Question
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
- Rises
- Falls
- Remains same
- Nothing can be concluded
The correct answer is: Falls
Related Questions to study
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
physics-
A mass m rests on a horizontal surface. The coefficient of friction between the mass and the surface is μ .If the mass is pulled by a force F as shown in figure, the limiting friction between the mass and the surface will be.
A mass m rests on a horizontal surface. The coefficient of friction between the mass and the surface is μ .If the mass is pulled by a force F as shown in figure, the limiting friction between the mass and the surface will be.
physics-General
physics-
The coefficient of static friction between contact surface of two bodies is 1 The contact surface of one body supports the other till the inclination is less than.
The coefficient of static friction between contact surface of two bodies is 1 The contact surface of one body supports the other till the inclination is less than.
physics-General
physics-
The coefficients of static and dynamic frictions are 0.7 and 0.4.The minimum force required to create motion is applied on a body, and if it is further continued, the acceleration attained by the body is..
The coefficients of static and dynamic frictions are 0.7 and 0.4.The minimum force required to create motion is applied on a body, and if it is further continued, the acceleration attained by the body is..
physics-General
physics-
A boy of mass M is applying a horizontal force to slide a box of mass M1 on a rough horizontal surface The coefficient of friction between the shoes of the boy and the floor is μ and that between the box and the floor is μ1 In which of the following cases it is certainly not possible to slide the box?
A boy of mass M is applying a horizontal force to slide a box of mass M1 on a rough horizontal surface The coefficient of friction between the shoes of the boy and the floor is μ and that between the box and the floor is μ1 In which of the following cases it is certainly not possible to slide the box?
physics-General
physics-
Consider the situation shown in figure The wall is smooth but the surfaces of A and B in contact are rough. The friction on B due to A in equilibrium
Consider the situation shown in figure The wall is smooth but the surfaces of A and B in contact are rough. The friction on B due to A in equilibrium
physics-General
physics-
It is easier to pull a lawn roller than to push it because pulling.
It is easier to pull a lawn roller than to push it because pulling.
physics-General