Maths-
General
Easy
Question
If A and 
are two independent events in a sample space 
then 
The correct answer is:
are independent events 
Now 
Related Questions to study
Maths-
The probability of an impossible event is
The probability of an impossible event is
Maths-General
Physics-
An electric dipole in a uniform electric field experiences (When it is placed at an angle 
with the field)
An electric dipole in a uniform electric field experiences (When it is placed at an angle with the field)
Physics-General
Physics-
An electron and a proton are at a distance of 
. The moment of this dipole will be (C 
m)
An electron and a proton are at a distance of . The moment of this dipole will be (C m)
Physics-General
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The distance between the two charges +q and -q of a dipole is r. On the axial line at a distance d from the centre of dipole, the intensity is proportional to
The distance between the two charges +q and -q of a dipole is r. On the axial line at a distance d from the centre of dipole, the intensity is proportional to
Physics-General
Physics-
In the following diagram the work done in moving a point charge from point P to point A, B and C is respectively as WA, WB and WC , then
In the following diagram the work done in moving a point charge from point P to point A, B and C is respectively as WA, WB and WC , then
Physics-General
Physics-
Four point +ve charges of same magnitude (Q) are placed at four corners of a rigid square frame as shown in figure. The plane of the frame is perpendicular to Z ̶axis. If a –ve point charge is placed at a distance z away from the above frame (z<<L) then
Four point +ve charges of same magnitude (Q) are placed at four corners of a rigid square frame as shown in figure. The plane of the frame is perpendicular to Z ̶axis. If a –ve point charge is placed at a distance z away from the above frame (z<<L) then
Physics-General
Physics-
A charged ball B hangs from a silk thread S, which makes an angle with a large charged conducting sheet P, as shown in the figure. The surface charge density 
of the sheet is proportional to
A charged ball B hangs from a silk thread S, which makes an angle with a large charged conducting sheet P, as shown in the figure. The surface charge density of the sheet is proportional to
Physics-General
Physics-
To charges 
and 
are placed 
apart, shown in the figure. A third charge 
is moved along the arc of a circle of radius 40cm from C to D. The change in the potential energy of the system is 
, where k is
To charges and are placed apart, shown in the figure. A third charge is moved along the arc of a circle of radius 40cm from C to D. The change in the potential energy of the system is , where k is
Physics-General
Physics-
As per this diagram a point charge +q is placed at the origin O. Work done in taking another point charge -Q from the point 
[co-ordinates (0,a)] to another point B [co-ordinates (a, 0)] along the straight path AB is
As per this diagram a point charge +q is placed at the origin O. Work done in taking another point charge -Q from the point [co-ordinates (0,a)] to another point B [co-ordinates (a, 0)] along the straight path AB is
Physics-General
Physics-
Figure shows three points A, B and C in a region of uniform electric field 
. The line AB is perpendicular and BC is parallel to the field lines. Then which of the following holds good. Where 
and 
represent the electric potential at points A, B and C respectively
Figure shows three points A, B and C in a region of uniform electric field . The line AB is perpendicular and BC is parallel to the field lines. Then which of the following holds good. Where and represent the electric potential at points A, B and C respectively
Physics-General
Physics-
The points resembling equal potentials are
The points resembling equal potentials are
Physics-General
Physics-
Charges q, 2q, 3q and 4q are placed at the corners A, B, C and D of a square as shown in the following figure. The direction of electric field at the centre of the square is along
Charges q, 2q, 3q and 4q are placed at the corners A, B, C and D of a square as shown in the following figure. The direction of electric field at the centre of the square is along
Physics-General
Physics-
There are two equipotential surface as shown in figure. The distance between them is r. The charge of –q coulomb is taken from the surface A to B, the resultant work done will be
There are two equipotential surface as shown in figure. The distance between them is r. The charge of –q coulomb is taken from the surface A to B, the resultant work done will be
Physics-General
Physics-
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0
cm is
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 cm is
Physics-General
Physics-
A hollow conducting sphere is placed in an electric field produced by a point charge placed at P as shown in figure. Let 
be the potentials at points A,B and C respectively. Then
A hollow conducting sphere is placed in an electric field produced by a point charge placed at P as shown in figure. Let be the potentials at points A,B and C respectively. Then
Physics-General
