Physics-
General
Easy
Question
A U-tube of base length " 
" filled with same volume of two liquids of densities 
and 
is moving with an acceleration "a" on the horizontal plane. If the height difference between the two surfaces (open to atmosphere) becomes zero, then the height 
is given by:
The correct answer is:
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In meter bridge experiment the observation table and circuit diagram are shown in figure
Which is the readings is not taken correctly ?
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Which is the readings is not taken correctly ?
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Consider the meter bridge shown in the figure below
The resistance X has temperature 
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Consider the meter bridge shown in the figure below
The resistance X has temperature coefficient and form resistance box has For shown situation balance point is at 10cm from left end, if temperature of system increases by due to joule heating, then the shift in the balance point is (Assume that only the resistance of X and resistance box changes due to change in temperature and there is no other effect
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The value of unknown resistance would be
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A cylindrical container of radius 'R' and height ' h ' is completely filled with a liquid. Two horizontal L shaped pipes of small cross-section area 'a' are connected to the cylinder as shown in the figure. Now the two pipes are opened and fluid starts coming out of the pipes horizontally in opposite directions. Then the torque due to ejected liquid on the system is:
A cylindrical container of radius 'R' and height ' h ' is completely filled with a liquid. Two horizontal L shaped pipes of small cross-section area 'a' are connected to the cylinder as shown in the figure. Now the two pipes are opened and fluid starts coming out of the pipes horizontally in opposite directions. Then the torque due to ejected liquid on the system is:
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A cylindrical vessel filled with water is released on an inclined surface of angle 
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Two spheres 
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A wooden cylinder of diameter 4r, height H and density is kept on a hole of diameter 2r of a tank, filled with liquid of density as shown in the figure. The block in the above question is maintained at the position by external means and the level of liquid is lowered. The height when this external force reduces to zero is :–
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A wooden cylinder of diameter 4r, height H and density is kept on a hole of diameter 2r of a tank, filled with liquid of density as shown in the figure. Now level of the liquid starts decreasing slowly. When the level of liquid is at a height above the cylinder the block starts moving up. At what value of , will the block rise :–
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A glass tube of uniform internal radius (r) has a valve separating the two identical ends. Initially, the valve is in a tightly closed position. End 1 has a hemispherical soap bubble of radius r. End 2 has sub–hemispherical soap bubble as shown in figure. Just after opening the valve,
A glass tube of uniform internal radius (r) has a valve separating the two identical ends. Initially, the valve is in a tightly closed position. End 1 has a hemispherical soap bubble of radius r. End 2 has sub–hemispherical soap bubble as shown in figure. Just after opening the valve,
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Water is filled up to a height h in a beaker of radius R as shown in the figure. The density of water is , the surface tension of water is T and the atmospheric pressure is 
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Water is filled up to a height h in a beaker of radius R as shown in the figure. The density of water is , the surface tension of water is T and the atmospheric pressure is . Consider a vertical section ABCD of the water column through a diameter of the beaker. The force on water on one side of this section by water on the other side of this section has magnitude :–
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The adjacent graph shows the extension 
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