Physics-
General
Easy
Question
The given graph shows the variation of velocity with displacement. Which one of the graph given below correctly represents the variation of acceleration with displacement?

The correct answer is: 
The
equation from the given graph can be written as,


Substituting
from Eq. (i), we get


Thus,
graph is a straight line with positive slope and negative intercept.
Related Questions to study
physics-
The displacement-time graphs of two moving particles make angles of
with the
axis. The ratio of their velocities is

Slope of displacement time-graph is velocity


The displacement-time graphs of two moving particles make angles of
with the
axis. The ratio of their velocities is

physics-General
Slope of displacement time-graph is velocity


Maths-
The minimum and maximum values of 3x are
As we know, if f(x)=a sin x+ b cos x
Then, range of f(x)
As f(x)= 8 cos 3x - 15 sin 3x

So, range of f(x)
Then, range of f(x)
As f(x)= 8 cos 3x - 15 sin 3x
So, range of f(x)
The minimum and maximum values of 3x are
Maths-General
As we know, if f(x)=a sin x+ b cos x
Then, range of f(x)
As f(x)= 8 cos 3x - 15 sin 3x

So, range of f(x)
Then, range of f(x)
As f(x)= 8 cos 3x - 15 sin 3x
So, range of f(x)
Physics-
The graph between the displacement
and
for a particle moving in a straight line is shown in figure. During the interval
and
the acceleration of the particle is

, 
Region
shows that graph bending toward time axis
acceleration is negative.
Region
shows that graph is parallel to time axis
velocity is zero. Hence acceleration is zero.
Region
shows that graph is bending towards displacement axis
acceleration is positive.
Region
shows that graph having constant slope
velocity is constant. Hence acceleration is zero
Region
Region
Region
The graph between the displacement
and
for a particle moving in a straight line is shown in figure. During the interval
and
the acceleration of the particle is

, 
Physics-General
Region
shows that graph bending toward time axis
acceleration is negative.
Region
shows that graph is parallel to time axis
velocity is zero. Hence acceleration is zero.
Region
shows that graph is bending towards displacement axis
acceleration is positive.
Region
shows that graph having constant slope
velocity is constant. Hence acceleration is zero
Region
Region
Region
Maths-
Extreme Values:The range of 
Extreme Values:The range of 
Maths-General
physics-
What is the equivalent resistance between
in the given circuit?


Now,
What is the equivalent resistance between
in the given circuit?

physics-General

Now,
physics-
The current in the 1
resistor shown in the circuit is

In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
The current in the 1
resistor shown in the circuit is

physics-General
In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
physics-
The current in the 1
resistor shown in the circuit is

In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
The current in the 1
resistor shown in the circuit is

physics-General
In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
physics-
The total current supplied to the given circuit by the battery is

The equivalent circuit of the given circuit is as shown

Resistances 6
and 2
are in parallel

Resistances

Resistances 3
and 3
are in parallel

The current,


Resistances 6
Resistances
Resistances 3
The current,
The total current supplied to the given circuit by the battery is

physics-General
The equivalent circuit of the given circuit is as shown

Resistances 6
and 2
are in parallel

Resistances

Resistances 3
and 3
are in parallel

The current,


Resistances 6
Resistances
Resistances 3
The current,
physics-
A current of 2A flows in an electric circuit as shown in figure. The potential difference
, in volts(
are potentials at R and S respectively) is

Current through each arm
PRQ and PSQ=1A


From Eqs. (i) and (ii), we get

PRQ and PSQ=1A
From Eqs. (i) and (ii), we get
A current of 2A flows in an electric circuit as shown in figure. The potential difference
, in volts(
are potentials at R and S respectively) is

physics-General
Current through each arm
PRQ and PSQ=1A


From Eqs. (i) and (ii), we get

PRQ and PSQ=1A
From Eqs. (i) and (ii), we get
physics-
A 3 V battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

Resistance in the arms AC and BC are in series,

∴ R’=3+3=6
Now, R’ and 3
are in parallel,

Now, V=IR


∴ R’=3+3=6
Now, R’ and 3
Now, V=IR
A 3 V battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

physics-General
Resistance in the arms AC and BC are in series,

∴ R’=3+3=6
Now, R’ and 3
are in parallel,

Now, V=IR


∴ R’=3+3=6
Now, R’ and 3
Now, V=IR
physics-
The equivalent resistance between the points A and B will be (each resistance is
15
)

The circuit can be shown as given below

The equivalent resistance between D and C.



Now, between A and B, the resistance of upper part ADCB,

Between A and B, the resistance of middle part AOB

Therefore, equivalent resistance between A and B






The equivalent resistance between D and C.
Now, between A and B, the resistance of upper part ADCB,
Between A and B, the resistance of middle part AOB
Therefore, equivalent resistance between A and B
The equivalent resistance between the points A and B will be (each resistance is
15
)

physics-General
The circuit can be shown as given below

The equivalent resistance between D and C.



Now, between A and B, the resistance of upper part ADCB,

Between A and B, the resistance of middle part AOB

Therefore, equivalent resistance between A and B






The equivalent resistance between D and C.
Now, between A and B, the resistance of upper part ADCB,
Between A and B, the resistance of middle part AOB
Therefore, equivalent resistance between A and B
physics-
There resistances of 4
each are connected as shown in figure. If the point D divides the resistance into two equal halves, the resistance between points A and D will be

The equivalent circuit is given by

4
and 2
resistances are in series on both sides.

Then 6
and6
resistances are in parallel on both sides

R=3

4
Then 6
R=3
There resistances of 4
each are connected as shown in figure. If the point D divides the resistance into two equal halves, the resistance between points A and D will be

physics-General
The equivalent circuit is given by

4
and 2
resistances are in series on both sides.

Then 6
and6
resistances are in parallel on both sides

R=3

4
Then 6
R=3
physics-
A particle starts from rest at
and moves in a straight line with an acceleration as shown below. The velocity of the particle at
is

Velocity of graph
Area of
-
graph

A particle starts from rest at
and moves in a straight line with an acceleration as shown below. The velocity of the particle at
is

physics-General
Velocity of graph
Area of
-
graph

maths-
Period of
is
Period of
is
maths-General
Maths-
Period of 
Period of 
Maths-General