Physics-
Three identical springs are shown in figure. When a 4 kg mass is suspended from spring A, its length increases by lcm. Now if a 6 kg mass is suspended from the froe end of spring C, then increase in its length is.
Physics-General
- 1.5
- 3.0
- 4.5
- 6.0
Answer:The correct answer is: 3.0
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physics-
If a bar magnet of length land cross-sectional area A is cut into two equal parts as shown in figure, then the pole strength of each pole becomes
Pole strength depends on material of magnet, state of magnetization and cross-sectional area. As 
so if Abecomes half, pole strength gets half.
so if Abecomes half, pole strength gets half.If a bar magnet of length land cross-sectional area A is cut into two equal parts as shown in figure, then the pole strength of each pole becomes
physics-General
Pole strength depends on material of magnet, state of magnetization and cross-sectional area. As so if Abecomes half, pole strength gets half.
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Three forces are acting simultaneously on a particle mowing with velocity 
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physicsGeneral
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As shown in figure, a body having mass m is attached with two springs having spring constants 
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- The frequency of oscillation is f. Now, if the springs constants of both the springs are increased 4 times, then the frequency of oscillation will be equal to .
As shown in figure, a body having mass m is attached with two springs having spring constants 1 and - The frequency of oscillation is f. Now, if the springs constants of both the springs are increased 4 times, then the frequency of oscillation will be equal to .
physics-General
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The figure shows a graph of displacement versus time for a particle executing S.H.M. The acceleration of the S.H.O. at the end of time 
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physics-General
physics-
As shown in figure, the object having mass M is executing S.H.M. with an amplitude A The amplitude of point P shown in figure will be ……
As shown in figure, the object having mass M is executing S.H.M. with an amplitude A The amplitude of point P shown in figure will be ……
physics-General
physics
A plate of mass M is placed on a horizontal frictionless surface and a body of mass m is placed on this plate, The coefficient of dynamic friction between this body and the plate is µ . If a force 2µmg. is applied to the body of mass in along the horizonal direction the acceleration of the plate will be ……
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physicsGeneral
physics-
As shown in figure, two masses of 3.0 kg and 1.0 kg are attached at the two ends of a spring having force constant 300 N
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As shown in figure, two masses of 3.0 kg and 1.0 kg are attached at the two ends of a spring having force constant 300 N. The natural frequency of oscillation for the system will be .......hz (Ignore friction)
physics-General
physics-
When a body having mass m is suspended from the free end of two springs suspended from a rigid support, as shown in figure, its periodic time of oscillation is T. If only one of the two springs are used, then the periodic time would be…
When a body having mass m is suspended from the free end of two springs suspended from a rigid support, as shown in figure, its periodic time of oscillation is T. If only one of the two springs are used, then the periodic time would be…
physics-General
physics
On the horizontal surface of a truck (=0.6) . a block of mass 1kg is placed. If the truck is accelerating at the rale of 5 m/s2 then frictional force on the block will be_
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physicsGeneral
physics-
A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy
III
IIIIV
Potential energy, 
Here M = magnetic moment of the loop
angle between M and B
is maximum when 
and minimum when 
So as 
decrease from 
its PE also decreases.
Here M = magnetic moment of the loop
angle between M and B is maximum when and minimum when So as decrease from its PE also decreases.A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy
III
IIIIV
physics-General
Potential energy,
Here M = magnetic moment of the loop
angle between M and B
is maximum when and minimum when So as decrease from its PE also decreases.
Here M = magnetic moment of the loop
angle between M and B is maximum when and minimum when So as decrease from its PE also decreases.maths-
Let
Let
maths-General
chemistry-
Which of the following statements are correct?
A) Like halogens, hydrogen combine with non metals forming covalent compounds.
B) Hydrogen as well as halogens have tendency of accepting electrons.
C) The oxide of hydrogen is natural, as is the case with oxide of halogens
D) Hydrogen and halogen form hydride ions with equal ease.
Conceptual
Which of the following statements are correct?
A) Like halogens, hydrogen combine with non metals forming covalent compounds.
B) Hydrogen as well as halogens have tendency of accepting electrons.
C) The oxide of hydrogen is natural, as is the case with oxide of halogens
D) Hydrogen and halogen form hydride ions with equal ease.
chemistry-General
Conceptual
physics
Two blocks of Nass 8 kg and 4 kg and connected a heavy string placed on rough horizontal plane, 4 kg block is Pulled with a constant force F. The co-efficient of friction between the blocks and the ground is 0.5 , what is the value of F, So that the tension in the spring is constant throughout during the motion of the blocks? (g=10ms-2)
Two blocks of Nass 8 kg and 4 kg and connected a heavy string placed on rough horizontal plane, 4 kg block is Pulled with a constant force F. The co-efficient of friction between the blocks and the ground is 0.5 , what is the value of F, So that the tension in the spring is constant throughout during the motion of the blocks? (g=10ms-2)
physicsGeneral
maths-
If 
is defined by 
If is defined by
maths-General
maths-
maths-General