Physics
General
Easy
Question
The resistance across in the figure below will be



 None of these
The correct answer is:
Resistance are in parallel
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physics
Five equal resistances, each of resistance are connected as shown in figure below. A bettery of volt is connected between The current flowing in will be
Five equal resistances, each of resistance are connected as shown in figure below. A bettery of volt is connected between The current flowing in will be
physicsGeneral
Maths
If , then the period of f(x) is
If , then the period of f(x) is
MathsGeneral
physics
The plot represents the flow of current through a wire at three different times.
The ratio of charges flowing through the wire at different times is
) 2 : 3 : 3
Therefore, charge is equal to area under the curve.
∴ Ist rectangle =q=lb=2
IInd rectangle =q=lb=2
Hence, ratio is 1:1:1.
Therefore, charge is equal to area under the curve.
∴ Ist rectangle =q=lb=2
IInd rectangle =q=lb=2
Hence, ratio is 1:1:1.
The plot represents the flow of current through a wire at three different times.
The ratio of charges flowing through the wire at different times is
physicsGeneral
) 2 : 3 : 3
Therefore, charge is equal to area under the curve.
∴ Ist rectangle =q=lb=2
IInd rectangle =q=lb=2
Hence, ratio is 1:1:1.
Therefore, charge is equal to area under the curve.
∴ Ist rectangle =q=lb=2
IInd rectangle =q=lb=2
Hence, ratio is 1:1:1.
physics
Consider a thin square sheet of side and thickness made of a material of resistivity The resistance between two opposite faces, shown by the shaded areas in the figure is
is independent of
Hence the correct option is (c).
Consider a thin square sheet of side and thickness made of a material of resistivity The resistance between two opposite faces, shown by the shaded areas in the figure is
physicsGeneral
is independent of
Hence the correct option is (c).
physics
The time taken by a block of wood (initially at rest)to slide down a smooth inclined plane long (angle of inclination is ) is
For one dimensional motion along a plane
The time taken by a block of wood (initially at rest)to slide down a smooth inclined plane long (angle of inclination is ) is
physicsGeneral
For one dimensional motion along a plane
physics
graph for a particle is as shown. The distance travelled in the first is
Distance covered Area enclosed by graph
Area of triangle
Area of triangle
graph for a particle is as shown. The distance travelled in the first is
physicsGeneral
Distance covered Area enclosed by graph
Area of triangle
Area of triangle
Maths
Period of is
Period of is
MathsGeneral
physics
A particle starts from rest at and undergoes an acceleration a in with time in seconds which is as shown
Which one of the following plot represents velocity in versus time in seconds
Takingthe motion from to
Taking the motion from to
A particle starts from rest at and undergoes an acceleration a in with time in seconds which is as shown
Which one of the following plot represents velocity in versus time in seconds
physicsGeneral
Takingthe motion from to
Taking the motion from to
Maths
Period of is
By fundamental property of f(x) periodic function with period T.
f (x+T) =f(x)
let f (x) =
assuming from the options smallest period of f(x) to be .
f (x+T) =f(x)
let f (x) =
assuming from the options smallest period of f(x) to be .
Period of is
MathsGeneral
By fundamental property of f(x) periodic function with period T.
f (x+T) =f(x)
let f (x) =
assuming from the options smallest period of f(x) to be .
f (x+T) =f(x)
let f (x) =
assuming from the options smallest period of f(x) to be .
physics
Two inclined planes are located as shown in figure. A particle is projected from the foot of one frictionless plane along its line with a velocity just sufficient to carry it to top after which the particle slides down the other frictionless inclined plane. The total time it will take to reach the point is
The time of ascent = time of descent
total time of flight
or
total time of flight
or
Two inclined planes are located as shown in figure. A particle is projected from the foot of one frictionless plane along its line with a velocity just sufficient to carry it to top after which the particle slides down the other frictionless inclined plane. The total time it will take to reach the point is
physicsGeneral
The time of ascent = time of descent
total time of flight
or
total time of flight
or
physics
characteristic of a copper wire of length and area of crosssection is shown in figure. The slope of the curve becomes
Slope of graph
If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.
Similarly in choice (b) and (c) resistance increase.
But for choice (d) resistance R increases, so slope decreases
If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.
Similarly in choice (b) and (c) resistance increase.
But for choice (d) resistance R increases, so slope decreases
characteristic of a copper wire of length and area of crosssection is shown in figure. The slope of the curve becomes
physicsGeneral
Slope of graph
If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.
Similarly in choice (b) and (c) resistance increase.
But for choice (d) resistance R increases, so slope decreases
If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.
Similarly in choice (b) and (c) resistance increase.
But for choice (d) resistance R increases, so slope decreases
physics
Four concurrent coplanar forces in newton are acting at a point and keep it in equilibrium figure. Then values of and are
In equilibrium position along direction
2 sin 60
or or
As
or
Along direction,
N
2 sin 60
or or
As
or
Along direction,
N
Four concurrent coplanar forces in newton are acting at a point and keep it in equilibrium figure. Then values of and are
physicsGeneral
In equilibrium position along direction
2 sin 60
or or
As
or
Along direction,
N
2 sin 60
or or
As
or
Along direction,
N
physics
The effective capacitance between points and shown in figure. Assuming F and that outer capacitors are all F is
The arrangement shows a Wheatstone bridge.
As therefore the bridge is balanced.
Similarly,
effective capacitance
As therefore the bridge is balanced.
Similarly,
effective capacitance
The effective capacitance between points and shown in figure. Assuming F and that outer capacitors are all F is
physicsGeneral
The arrangement shows a Wheatstone bridge.
As therefore the bridge is balanced.
Similarly,
effective capacitance
As therefore the bridge is balanced.
Similarly,
effective capacitance
physics
The four capacitors, each of 25 F are connected as shown in figure. The DC voltmeter reads 200 V. the change on each plate of capacitor is
Charge on each plate of each capacitor
The four capacitors, each of 25 F are connected as shown in figure. The DC voltmeter reads 200 V. the change on each plate of capacitor is
physicsGeneral
Charge on each plate of each capacitor
physics
For the circuit shown in figure the charge on 4F capacitor is
Combined capacity of and = 1 + 5=
Now, and are in series.
Charge in the arm containing capacitor is
Now, and are in series.
Charge in the arm containing capacitor is
For the circuit shown in figure the charge on 4F capacitor is
physicsGeneral
Combined capacity of and = 1 + 5=
Now, and are in series.
Charge in the arm containing capacitor is
Now, and are in series.
Charge in the arm containing capacitor is