Physics-
General
Easy
Question
Which of the following particles is most unstable?
- Neutron
- Proton
- Electron
- a particle
The correct answer is: Neutron
Related Questions to study
chemistry-
Extractionofaluminiumcanbeunderstoodby:
Electrolytic reduction of 
Electrolytic:( +Cryolite+
)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The molten electrolytes contain 
, and 
only Al gets deposited at cathode because:
Extractionofaluminiumcanbeunderstoodby:
Electrolytic reduction of
Electrolytic:( +Cryolite+)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The molten electrolytes contain , and only Al gets deposited at cathode because:
chemistry-General
chemistry-
Extraction of aluminium can be understood by:
Electrolytic reduction of
Electrolytic:( +Cryolite+)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The function of fluorspar()is:
Extraction of aluminium can be understood by:
Electrolytic reduction of
Electrolytic:( +Cryolite+)
Cathode: Carbon inside the Fe-container
Anode: Graphite rods
The function of fluorspar()is:
chemistry-General
physics-
In the following nuclear reaction 
, X will be
In the following nuclear reaction , X will be
physics-General
physics-
When 
decays to become 
, the particle released is
When decays to become , the particle released is
physics-General
physics-
The binding energies of a deutron and an 
-particle are 1.125, 7.2 MeV/nucleon respectively. The more stable of the two, is
The binding energies of a deutron and an -particle are 1.125, 7.2 MeV/nucleon respectively. The more stable of the two, is
physics-General
physics-
Observe the following statements regarding isotones
i) 
and 
are isotones
ii) Nuclides having different atomic numbers (z) and mass number (A) but same number of neutrons (n) are called Isotones
iii) 
are isotone
Observe the following statements regarding isotones
i) and are isotones
ii) Nuclides having different atomic numbers (z) and mass number (A) but same number of neutrons (n) are called Isotones
iii) are isotone
physics-General
physics-
A current carrying loop is placed in the nonuniform magnetic field whose variation in space is shown in figure. Direction of magnetic field is into the plane of paper. the magnetic force experienced by the loop is
A current carrying loop is placed in the nonuniform magnetic field whose variation in space is shown in figure. Direction of magnetic field is into the plane of paper. the magnetic force experienced by the loop is
physics-General
physics-
A current loop ABCD is fix on the plane of the paper as shown in the figure The arcs BC (radius = b) and DA (radius = a) of the loop are joined by two straight wires AB and CD A steady current I is flowing in the loop Angle made by AB and CD at the origin O is 30
Another straight thin wire with steady current I1 , flowing out of the plane of the paper is kept at the origin.
Due to the presence of the current I1 at the origin
A current loop ABCD is fix on the plane of the paper as shown in the figure The arcs BC (radius = b) and DA (radius = a) of the loop are joined by two straight wires AB and CD A steady current I is flowing in the loop Angle made by AB and CD at the origin O is 30 Another straight thin wire with steady current I1 , flowing out of the plane of the paper is kept at the origin.
Due to the presence of the current I1 at the origin
physics-General
physics-
A current loop ABCD is fix on the plane of the paper as shown in the figure The arcs BC (radius = b) and DA (radius = a) of the loop are joined by two straight wires AB and CD A steady current I is flowing in the loop Angle made by AB and CD at the origin O is 30 Another straight thin wire with steady current I1 , flowing out of the plane of the paper is kept at the origin.
The magnitude of the magnetic field (B) due to loop ABCD at the origin (O) is
A current loop ABCD is fix on the plane of the paper as shown in the figure The arcs BC (radius = b) and DA (radius = a) of the loop are joined by two straight wires AB and CD A steady current I is flowing in the loop Angle made by AB and CD at the origin O is 30 Another straight thin wire with steady current I1 , flowing out of the plane of the paper is kept at the origin.
The magnitude of the magnetic field (B) due to loop ABCD at the origin (O) is
physics-General
Physics-
A long current carrying wire, carrying current such that it is flowing out from the plane of paper, is placed at O. A steady state current is flowing in the loop ABCD. Then
A long current carrying wire, carrying current such that it is flowing out from the plane of paper, is placed at O. A steady state current is flowing in the loop ABCD. Then
Physics-General
physics-
A loop carrying current I lies in the x-y plane as shown in fig. The unit vector 
k is coming out of the plane of the paper. The magnetic moment of the current loop is
A loop carrying current I lies in the x-y plane as shown in fig. The unit vector k is coming out of the plane of the paper. The magnetic moment of the current loop is
physics-General
physics-
A circular loop of radius 20cm is placed in a uniform magnetic field 
in X-Y plane. the loop carries a current 1A in the direction shown in figure. The magnitude of torque acting on the loop is nearly33. A non conducting disc of radius R, charge q is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity w charge q is uniformly distributed over its surface. The magnetic moment of the disc is
A circular loop of radius 20cm is placed in a uniform magnetic field in X-Y plane. the loop carries a current 1A in the direction shown in figure. The magnitude of torque acting on the loop is nearly33. A non conducting disc of radius R, charge q is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity w charge q is uniformly distributed over its surface. The magnetic moment of the disc is
physics-General
physics-
Two 1ong wires are placed parallel to each other 10cm apart as shown in fig. The magnetic field at point P is
Two 1ong wires are placed parallel to each other 10cm apart as shown in fig. The magnetic field at point P is
physics-General
physics-
A proton accelerated by a pd V=500 KV moves through a transverse magnetic field B=0.51 T as shown in figure. Then the angle q through which the proton deviates from the initial direction of its motion is (approximately)
A proton accelerated by a pd V=500 KV moves through a transverse magnetic field B=0.51 T as shown in figure. Then the angle q through which the proton deviates from the initial direction of its motion is (approximately)
physics-General
physics-
A particle of mass m and charge q, moving with velocity V enters Region II normal to the boudary as shown in fig. Region II has a uniform magnetic field B perpendicular to the plane of the paper. The length of the Region II is l . Then :
A particle of mass m and charge q, moving with velocity V enters Region II normal to the boudary as shown in fig. Region II has a uniform magnetic field B perpendicular to the plane of the paper. The length of the Region II is l . Then :
physics-General
