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General
Easy
Question
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
The correct answer is:
Related Questions to study
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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:
physics-General
physics-
On an inclined plane, making an angle . With horizontal, a trolley containing a liquid placed on it, are stationary then:
On an inclined plane, making an angle . With horizontal, a trolley containing a liquid placed on it, are stationary then:
physics-General
physics-
A cylindrical vessel contains a liquid of density of 
upto a height 
The liquid is closed by a piston of mass 
and area of cross section A. There is a small hole at the bottom of the vessel. The speed v with which the liquid comes out of the hole
A cylindrical vessel contains a liquid of density of upto a height The liquid is closed by a piston of mass and area of cross section A. There is a small hole at the bottom of the vessel. The speed v with which the liquid comes out of the hole
physics-General
physics-
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
physics-General
physics-
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 
and 
respectively, such that 
The fraction of the volume of the ball in the lower liquid is
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 and respectively, such that The fraction of the volume of the ball in the lower liquid is
physics-General
physics-
A massless rod of length 1 m is hanged from the ceiling at one end and the other end is connected to the weight W. Cross-sectional area of the wire is 
With reference to the above graph, Young’s modulus of the material of the wire 
is
A massless rod of length 1 m is hanged from the ceiling at one end and the other end is connected to the weight W. Cross-sectional area of the wire is With reference to the above graph, Young’s modulus of the material of the wire is
physics-General
physics-
The position vector 
and linear momentum
are 
and 
the angular momentum vector is
perpendicular to
The position vector and linear momentum are and the angular momentum vector is perpendicular to
physics-General
physics-
If none of the vectors 
and 
are zero and if 
and 
the value of 
is
If none of the vectors and are zero and if and the value of is
physics-General
physics-
Assertion: A massless rope thrown over a frictionless pulley has a ladder with a mass of m on one its ends and a counter balancing mass M on its other end. If a man climbs with some velocity then centre of mass of the system (man, ladder and balancing mass) moving upward.
Reason: Net force on the system is in upward direction is zero.
A) If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
B) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
C) If Assertion is true but Reason is false.
D) If Assertion is false but Reason is true.
Assertion: A massless rope thrown over a frictionless pulley has a ladder with a mass of m on one its ends and a counter balancing mass M on its other end. If a man climbs with some velocity then centre of mass of the system (man, ladder and balancing mass) moving upward.
Reason: Net force on the system is in upward direction is zero.
A) If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
B) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
C) If Assertion is true but Reason is false.
D) If Assertion is false but Reason is true.
physics-General
physics-
Assertion: If the moment of inertia of a non-uniform ring of mass M and radius R is known about an AA', then we can calculate the moment of inertia about BB' (C is the geometrical centre of ring).
Reason: 
A) If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
B) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
C) If Assertion is true but Reason is false.
D) If Assertion is false but Reason is true.
Assertion: If the moment of inertia of a non-uniform ring of mass M and radius R is known about an AA', then we can calculate the moment of inertia about BB' (C is the geometrical centre of ring).
Reason:
A) If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
B) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
C) If Assertion is true but Reason is false.
D) If Assertion is false but Reason is true.
physics-General
physics-
A uniform rod of length l is pivoted at point A. It is struck by a horizontal force which delivers an impulse J at a distance x from point A as shown in figure, if impulse delivered by pivot is zero hat initially then x is
A uniform rod of length l is pivoted at point A. It is struck by a horizontal force which delivers an impulse J at a distance x from point A as shown in figure, if impulse delivered by pivot is zero hat initially then x is
physics-General
physics-
Three masses 
and 
are suspended at the end of a spring a shown and are in equilibrium. When the 
mass is removed, the system oscillates with a period of 3 seconds, when the 
mass is also removed, it will oscillate with a period of
Three masses and are suspended at the end of a spring a shown and are in equilibrium. When the mass is removed, the system oscillates with a period of 3 seconds, when the mass is also removed, it will oscillate with a period of
physics-General
physics-
A wooden block performs SHM on a frictionless surface with frequency, 
The block carries a change 
on its surface. If now a uniform electric field 
is switched-on as shown, then SHM of the block will be
A wooden block performs SHM on a frictionless surface with frequency, The block carries a change on its surface. If now a uniform electric field is switched-on as shown, then SHM of the block will be
physics-General
physics-
Two identical springs of constant 
are connected in series and parallel as shown in figure. A mass is suspended from them. The ratio of their frequencies of vertical oscillations will be
Two identical springs of constant are connected in series and parallel as shown in figure. A mass is suspended from them. The ratio of their frequencies of vertical oscillations will be
physics-General
physics-
Lissajous figure shown in figure. Corresponds to which one of the following
Lissajous figure shown in figure. Corresponds to which one of the following
physics-General
