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General
Easy
Question
A manometer shown in the figure contains a liquid of density . Find the difference in the levels when the manometer rotates with a constant angular velocity about one of its vertical limbs:
- none of these
The correct answer is:
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A cylindrical vessel of 90 cm height is kept filled upto brim. It has four holes 1,2,3,4 which are respectively at heights of 20 cm, 30 cm, 45 cm and 50 cm from the horizontal floor PQ. The water falling at the maximum horizontal distance from the vessel comes from
A cylindrical vessel of 90 cm height is kept filled upto brim. It has four holes 1,2,3,4 which are respectively at heights of 20 cm, 30 cm, 45 cm and 50 cm from the horizontal floor PQ. The water falling at the maximum horizontal distance from the vessel comes from
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A uniform wire having mass per unit length is placed over a liquid surface. The wire causes the liquid to depress by 
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The figure shows a semi-cylindrical massless gate (of width R) pivoted at the point O holding a stationary liquid of density ρ. A horizontal force F is applied at its lowest position to keep it stationary. The magnitude of the force is:
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Net magnetic field at the center of the circle o due to a current through loop ABC as shown in figure is 
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Two very thin metallic wires placed along X and Y axes carry equal currents as shown AB and CD are lines at 45
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Two very thin metallic wires placed along X and Y axes carry equal currents as shown AB and CD are lines at 45 with the axes having origin at O the magnetic field will be zero on the line
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A liquid stands at the same level in the U-tube when at rest. If areas of cross-section of both the limbs are equal, the difference in heights h of the liquid in the two limbs of U-tube, when the system is given an acceleration a in horizontal direction as shown, is
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A small spherical solid ball is dropped in a viscous liquid. Its journey in the liquid is best described in the figure drawn by:
A small spherical solid ball is dropped in a viscous liquid. Its journey in the liquid is best described in the figure drawn by:
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On an inclined plane, making an angle . With horizontal, a trolley containing a liquid placed on it, are stationary then:
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A cylindrical vessel contains a liquid of density of 
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A long straight thin conductor has a current of ’i’ ampere. The magnetic induction B away from the conductor at a distance ‘r’ from its axis varies as shown in
A long straight thin conductor has a current of ’i’ ampere. The magnetic induction B away from the conductor at a distance ‘r’ from its axis varies as shown in
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A solid ball having volume V and density floats at the interface of two immiscible liquids as shown in figure. The densities of the upper and the lower liquids are 
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