Chemistry-
General
Easy
Question

(A) and(C) are different compound s and rotate the plane-polarised light in the same direction, andboth are dextrorotatory. Both (A) and(C) do not show diastereomers, whichof the following statements are correct?




The correct answer is: 
Related Questions to study
chemistry-
Which of the following dienes and dienophiles could be used to synthesise the following compound (A) ?

Which of the following dienes and dienophiles could be used to synthesise the following compound (A) ?

chemistry-General
Maths-
16 sin 
16 sin 
Maths-General
physics-
Five conductors are meeting at a point x as shown in the figure. What is the value of current in fifth conductor?

According to Kirchhoff’s first law
(5A)+(4A)+(-3A)+(-5A)+I=0
Or I=-1A

(5A)+(4A)+(-3A)+(-5A)+I=0
Or I=-1A

Five conductors are meeting at a point x as shown in the figure. What is the value of current in fifth conductor?

physics-General
According to Kirchhoff’s first law
(5A)+(4A)+(-3A)+(-5A)+I=0
Or I=-1A

(5A)+(4A)+(-3A)+(-5A)+I=0
Or I=-1A

physics-
The figure shows a network of currents. The magnitude of current is shown here. The current I will be

Regarding Kirchhoff’s junction rule, the circuit can be redrawn as

Current in arm,
Current in arm,
Current in arm,
Hence,

Current in arm,
Current in arm,
Current in arm,
Hence,
The figure shows a network of currents. The magnitude of current is shown here. The current I will be

physics-General
Regarding Kirchhoff’s junction rule, the circuit can be redrawn as

Current in arm,
Current in arm,
Current in arm,
Hence,

Current in arm,
Current in arm,
Current in arm,
Hence,
physics-
The equivalent resistance between the terminals
in the following circuit is


10
(10+10)=20
and 10
(10+10)=20

20

Resistance in series between points A and D
=5+10+5
=20
The equivalent resistance between the terminals
in the following circuit is

physics-General

10
(10+10)=20
and 10
(10+10)=20

20

Resistance in series between points A and D
=5+10+5
=20
physics-
The equivalent resistance between points A and B of an infinite network of resistances, each of 1
, connected as shown is

Let
be the equivalent resistance of entire network between A and B. Hence, we have

resistance of parallel combination of 1
and 







The equivalent resistance between points A and B of an infinite network of resistances, each of 1
, connected as shown is

physics-General
Let
be the equivalent resistance of entire network between A and B. Hence, we have

resistance of parallel combination of 1
and 







Maths-
The period of
is
Period of sin
As we know, if the period of f(x) is T then the period of g(f(x)) is also T.
So, period of sin(sin
) =2
As we know, if the period of f(x) is T then the period of g(f(x)) is also T.
So, period of sin(sin
The period of
is
Maths-General
Period of sin
As we know, if the period of f(x) is T then the period of g(f(x)) is also T.
So, period of sin(sin
) =2
As we know, if the period of f(x) is T then the period of g(f(x)) is also T.
So, period of sin(sin
Maths-
The period of
is
f(x)=
Period of sin kx =
In numerator,
period of sin (
)=
In denominator,
period of sin (
)=
So, the period of f(x) is 1.
Period of sin kx =
In numerator,
period of sin (
In denominator,
period of sin (
So, the period of f(x) is 1.
The period of
is
Maths-General
f(x)=
Period of sin kx =
In numerator,
period of sin (
)=
In denominator,
period of sin (
)=
So, the period of f(x) is 1.
Period of sin kx =
In numerator,
period of sin (
In denominator,
period of sin (
So, the period of f(x) is 1.
Maths-
Period of tan 4x+sec 4x is
f(x)= tan 4x + sec 4x
Period of tan 4x =
Period of sec 4x=
So, period of f(x)=LCM of
Period of tan 4x =
Period of sec 4x=
So, period of f(x)=LCM of
Period of tan 4x+sec 4x is
Maths-General
f(x)= tan 4x + sec 4x
Period of tan 4x =
Period of sec 4x=
So, period of f(x)=LCM of
Period of tan 4x =
Period of sec 4x=
So, period of f(x)=LCM of
Maths-
The cotangent function whose period
is
Period of cot (k x) = 
given,
So, cotangent function whose period is
.
given,
So, cotangent function whose period is
The cotangent function whose period
is
Maths-General
Period of cot (k x) = 
given,
So, cotangent function whose period is
.
given,
So, cotangent function whose period is
physics-
Thirteen resistances each of resistance R
are connected in the circuit as shown in the figure. The effective resistance between points A and B is

Resistance R bisecting the circuit can be neglected due to the symmetry of the circuit.
Now, there are four triangles
Effective resistance of each triangle



Now the given circuit reduced to

Therefore, effective resistance between A and B,


Now, there are four triangles
Effective resistance of each triangle
Now the given circuit reduced to

Therefore, effective resistance between A and B,
Thirteen resistances each of resistance R
are connected in the circuit as shown in the figure. The effective resistance between points A and B is

physics-General
Resistance R bisecting the circuit can be neglected due to the symmetry of the circuit.
Now, there are four triangles
Effective resistance of each triangle



Now the given circuit reduced to

Therefore, effective resistance between A and B,


Now, there are four triangles
Effective resistance of each triangle
Now the given circuit reduced to

Therefore, effective resistance between A and B,
physics-
Six resistors, each of value 3
are connected as shown in the figure. A cell of emf 3V is connected across
The effective resistance across
and the current through the arm
will be

The equivalent circuit is shown as

We can emit the resistance in the arm DF as balance condition is satisfied.
Therefore, the 3
resistances in arm CD and DE are in series.

Similarly, for arms CF and FE, R’’=6
are in parallel

R’’’=3
Now, R’’’ and 3
resistances are in parallel


Moreover, V across AB=3V and resistance in the arm=3
∴ Current through the arm will be


We can emit the resistance in the arm DF as balance condition is satisfied.
Therefore, the 3
Similarly, for arms CF and FE, R’’=6
R’’’=3
Now, R’’’ and 3
Moreover, V across AB=3V and resistance in the arm=3
∴ Current through the arm will be
Six resistors, each of value 3
are connected as shown in the figure. A cell of emf 3V is connected across
The effective resistance across
and the current through the arm
will be

physics-General
The equivalent circuit is shown as

We can emit the resistance in the arm DF as balance condition is satisfied.
Therefore, the 3
resistances in arm CD and DE are in series.

Similarly, for arms CF and FE, R’’=6
are in parallel

R’’’=3
Now, R’’’ and 3
resistances are in parallel


Moreover, V across AB=3V and resistance in the arm=3
∴ Current through the arm will be


We can emit the resistance in the arm DF as balance condition is satisfied.
Therefore, the 3
Similarly, for arms CF and FE, R’’=6
R’’’=3
Now, R’’’ and 3
Moreover, V across AB=3V and resistance in the arm=3
∴ Current through the arm will be
physics-
In the circuit shown the value of I in ampere is

We can simplify the network as shown

So, net resistance,
R=2.4+1.6=4.0
Therefore, current from the battery.

Now, from the circuit (b),
4I’ =6I

But
=I+I’




So, net resistance,
R=2.4+1.6=4.0
Therefore, current from the battery.
Now, from the circuit (b),
4I’ =6I
But
In the circuit shown the value of I in ampere is

physics-General
We can simplify the network as shown

So, net resistance,
R=2.4+1.6=4.0
Therefore, current from the battery.

Now, from the circuit (b),
4I’ =6I

But
=I+I’




So, net resistance,
R=2.4+1.6=4.0
Therefore, current from the battery.
Now, from the circuit (b),
4I’ =6I
But
physics-
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
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.
Substituting
Thus,
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?

physics-General
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.
Substituting
Thus,
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

