Question
The radius of an electron orbit in a hydrogen atom is of the order of
The correct answer is:
The radius of an electron in a hydrogen atom is of the order of The value of Bohr’s radius is 
Related Questions to study
A nucleus of an element 
emits an 
-particle first, a 
-particle next and then a gamma photon. The final nucleus formed has an atomic number
A nucleus of an element emits an -particle first, a -particle next and then a gamma photon. The final nucleus formed has an atomic number
Orbital acceleration of electron is
Orbital acceleration of electron is
Neutrino emission in 
was predicted theoretically by
Neutrino emission in was predicted theoretically by
Which can pass through thickness of the steel
Which can pass through thickness of the steel
The kinetic energy of the electron in an orbit of radius in hydrogen atom is (e = electronic charge)
The kinetic energy of the electron in an orbit of radius in hydrogen atom is (e = electronic charge)
Atom bomb consists of two pieces of 
and a source of
Atom bomb consists of two pieces of and a source of
What fraction of a radioactive material will get disintegrated in a period of two half-lives
What fraction of a radioactive material will get disintegrated in a period of two half-lives
The minimum energy required to excite a hydrogen atom from its ground state is
The minimum energy required to excite a hydrogen atom from its ground state is
The electric potential between a proton and an electron is given by 
, where 
is a constant. Assuming Bohr’s model to be applicable, write variation of 
with n,n being the principal quantum number
The electric potential between a proton and an electron is given by , where is a constant. Assuming Bohr’s model to be applicable, write variation of with n,n being the principal quantum number
and 
of the transmitted and reflected beams corresponding to the incident parts 
and 
of the beam, are shown in the adjoining diagram. The number of alpha particles in
. The mass defect given in 
is
Bohr orbit is 
, choose the correct option
level to 
, emitting a photon of wavelength 
. The wavelength of photon produced during its transition from 
level to 
of a radioactive sample and the number of active atoms 
is
level to 
is emitted. The wavelength of photon produced during it’s transition from 
level to 
. The ratio 
will be
