Physics-
General
Easy
Question
If the time period of a pendulum is 1 sec, then what is the length of the pendulum at point of intersection of l-T and 
graph
- 25 cm
- 21 cm
- 22 cm
- 27 cm
The correct answer is: 25 cm
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Order and degree of differential equation 
are
Order and degree of differential equation are
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The solution of 
is
The solution of is
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For the given figure, calculate zero correction.
For the given figure, calculate zero correction.
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Three capacitors 
are connected as shown in the figure to a battery of 
volt. If the capacitor 
breaks down electrically the change in total charge on the combination of capacitors is
Three capacitors are connected as shown in the figure to a battery of volt. If the capacitor breaks down electrically the change in total charge on the combination of capacitors is
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The charge deposited on capacitor the circuit is
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If 
then y satisfies
If then y satisfies
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In the figure, a proton moves a distance d in a uniform electric field E as shown in the figure. Does the electric field do a positive or negative work on the proton? Does the electric potential energy of the proton increase or decrease?
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Solution of 
is
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Two charges 
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Figure shows three spherical and equipotential surfaces A, B and C round a point charge q. The potential difference
. If 
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Figure shows three spherical and equipotential surfaces A, B and C round a point charge q. The potential difference. If and be the distance between them. Then
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Charges +q and –q are placed at points A and B respectively which are a distance 
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along the semicircle CRD is
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Consider three concentric shells of metal A, B and C are having radii a, b and c respectively as shown in the figure 
Their surface charge densities are 
respectively. Calculate the electric potential on the surface of shell A
Consider three concentric shells of metal A, B and C are having radii a, b and c respectively as shown in the figure Their surface charge densities are respectively. Calculate the electric potential on the surface of shell A
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Work required to set up the four charge configuration (as shown in the figure) is
Work required to set up the four charge configuration (as shown in the figure) is
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The points resembling equal potentials are
The points resembling equal potentials are
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In the following diagram the work done in moving a point charge from point P to point A, B and C is respectively as 
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