Bohr Atomic Model in Hindi. We covered all the Bohr Atomic Model in Hindi in this post for free so that you can practice well for the exam.
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Mock Test on Bohr Atomic Model for Students
Bohr's model is the modification of Rutherford's model of the atom on the basis of
(A) Maxwell's theory
(B) Newton's theory
(C) Planck's quantum theory
(D) Huygens theory
Option c - Planck's quantum theory
According to Bohr's theory, an electron in a quantum-selected orbit can :
(A) absorb energy continuously.
(B) radiate energy continuously
(C) absorb and radiate energy
(D) not absorb or radiate energy
Option d - not absorb or radiate energy
According to Bohr's atomic model, the angular momentum of an electron in permitted orbit is proportional to :
(A) the reciprocal of the principal quantum number
(B) the square of the principal quantum number
(C) the cube of the principal quantum number
(D) principal quantum number
Option d - principal quantum number
Bohr's model assumes that the quantity, which can exist only as an integral multiple of h/27 is :
(A) angular momentum
(B) linear momentum
(C) energy-momentum
(D) quantum frequency
Option a - angular momentum
Bohr's theory of atomic model was successful because it relates to
(A) the theory of relativity
(B) properties of the nucleus
(C) the observed hydrogen spectrum
(D) the size of the nucleus
Option c - the observed hydrogen spectrum
Bohr's atomic model is added to the Rutherford atomic model with the restriction that :
(A) light is emitted by an orbiting electron
(B) only certain electron orbits are possible
(C) all electrons have the same mass
(D) all nuclei of a given element have the same charge
Option b - only certain electron orbits are possible
To explain his theory, Bohr used the conservation of
(A) angular momentum
(B) linear momentum
(C) energy-momentum
(D) quantum frequency
Option a - angular momentum
According to Bohr's atomic model, an electron can continuously revolve around a nucleus, if its orbit is a circle of
(A) increasing radius
(B) decreasing radius
(C) unchanged radius
(D) permitted radius
Option d - permitted radius
As the radius of the orbit increases :
(A) K.E. decreases. P. E. increases
(B) K.E. increases, P. E. decreases
(C) K.E. and P. E. both decrease
(D) K.E. and P. E. both are increases
Option a - K.E. decreases. P. E. increases
The period of revolution of an electron in the first Bohr orbit is T then the period of revolution in 2nd orbit is :
(A) 8 T
(B) 4 T
(C) 2 T
(D) T/8
Option a - 8 T
When an electron moves in orbit around the nucleus, it has :
(A) potential energy only
(B) kinetic energy only
(C) both '1' and '2'
(D) zero energy
Option c - both '1' and '2'
We covered all the bohr atomic model in Hindi above in this post for free so that you can practice well for the exam.
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