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Recent questions tagged all about atoms
+3
votes
1
answer
In the Helium-Neon laser (three-level laser), the energy spacing between the upper
asked
Mar 29, 2019
in
JEE
by
kratos
jee
all about atoms
dual nature of radiation and matter
optics
jee mains
class-12
quantum mechanics
+2
votes
1
answer
Solid targets of different elements are bombarded by highly energetic electron beams.
asked
Mar 27, 2019
in
Physics
by
kratos
particle physics
all about atoms
jee
jee mains
class-12
atoms
nuclei
+2
votes
1
answer
Population inversion is important for the generation of a laser beam because it assures that:
asked
Mar 22, 2019
in
Mathematics
by
kratos
all about atoms
+1
vote
1
answer
If electrons did not have intrinsic angular momentum (spin) but still obeyed the Pauli exclusion principle,
asked
Mar 17, 2019
in
Class 11
by
kratos
cbse
class-11
all about atoms
structure of atom
+2
votes
1
answer
The effective charge acting on a single valence electron outside a closed shell is about Ne, where N is:
asked
Mar 3, 2019
in
Mathematics
by
kratos
all about atoms
+3
votes
1
answer
In a Stern-Gerlach experiment a collimated beam of hydrogen atoms emitted from an oven at a temperature of 600 K,
asked
Feb 14, 2019
in
Physics
by
kratos
all about atoms
jee
jee mains
particle physics
quantum mechanics
+3
votes
1
answer
To observe the Zeeman effect one uses: A. a strong uniform magnetic field
asked
Jan 31, 2019
in
Mathematics
by
kratos
all about atoms
+1
vote
1
answer
Radiation with the minimum wavelength as well as the K x-ray lines are detected for a certain target.
asked
Jan 9, 2019
in
Mathematics
by
kratos
all about atoms
+2
votes
1
answer
The ionization energy of an atom in its ground state is:
asked
Jan 3, 2019
in
Mathematics
by
kratos
all about atoms
+1
vote
1
answer
The possible values for the magnetic quantum number ms of an electron in an atom:
asked
Jan 1, 2019
in
Mathematics
by
kratos
all about atoms
+3
votes
1
answer
A laser beam can be sharply focused because it is: A. highly coherent B. plane polarized
asked
Dec 30, 2018
in
Class 12
by
kratos
class-12
all about atoms
communication systems
+2
votes
1
answer
No state in an atom can be occupied by more than one electron. This is most closely related to:
asked
Dec 13, 2018
in
Mathematics
by
kratos
all about atoms
+1
vote
1
answer
Assertion: LASER is used to measure distant object as moon. Reason : They are highly coherent source of light.
asked
Dec 11, 2018
in
Class 12
by
kratos
neet
aiims
all about atoms
communication systems
class-12
atoms
+2
votes
1
answer
In a laser source the emission from various atoms/molecules are coherent
asked
Dec 5, 2018
in
Class 12
by
kratos
neet
aiims
all about atoms
communication systems
class-12
atoms
+1
vote
1
answer
Assertion: In He-Ne laser, population inversion takes place between energy levels of neon atoms.
asked
Dec 4, 2018
in
Class 12
by
kratos
neet
upsee
all about atoms
aiims
stoichiometry
class-10
icse
mole concept
atoms
+2
votes
1
answer
The Stern-Gerlach experiment makes use of: A. a strong uniform magnetic field
asked
Dec 1, 2018
in
JEE
by
kratos
jee
all about atoms
quantum mechanics
jee mains
+1
vote
1
answer
In connection with x-ray emission the symbol Kα refers to:
asked
Nov 12, 2018
in
Mathematics
by
kratos
all about atoms
+3
votes
1
answer
Laser beam is considered to be coherent because it consists of –
asked
Nov 12, 2018
in
JEE
by
kratos
jee
all about atoms
communication systems
optics
jee mains
class-12
+1
vote
1
answer
State Pauli Exclusion Principle.
asked
Nov 3, 2018
in
Class 11
by
kratos
all about atoms
class-11
cbse
structure of atom
+2
votes
1
answer
State Pauli exclusion principle.
asked
Oct 31, 2018
in
Class 12
by
kratos
cbse
class-11
all about atoms
class-12
structure of atom
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