CBSE IX Chemistry Structure of the Atom
expain bhor`s model of an atom
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11th March 2008
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JEE Plances ALL Class Physics Modern Physics
SUPPOSE AN ELECTRON IS ATTRACTED TOWARDS ORIGIN BY A FORCE K/R WHERE K IS A CONSTANT AND R IS THE DISTANCE OF THE ELECTRON FROM THE ORIGIN. BY APPLYING BOHR MODEL TO THIS SYSTEM THE RADIUS OF THE nth ORBITAL OF THE ELECTRON IS FOUND TO BE Rn and THE KINETIC ENERGY OF THE ELECTRON TO BE Tn THAN
WHY Tn is independent of n, Rn directly proportional to N
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10th October 2017
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CBSE XI Science Chemistry Structure of Atom
6?
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19th May 2018
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CBSE XI Science Chemistry Structure of Atom
The wavelength of an electron revolving in the 3rd orbit of Be3+ is 'x' . The radius of first Bohr orbit in H atom is k , then 'x' is equal to ?
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18th June 2018
6:39 PM
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CBSE XII Science Physics Atoms
The ground state energy of hydrogen atom is -13.6eV. What are the kinetic and potential energies of the electron in this state?
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14th January 2019
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CBSE XII Science Physics Atoms
Using de Boglie's hypothesis, explain with the help of a suitable diagram, Bohr's second postulate of quantisation of energy levels in a hydrogen atom.
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14th January 2019
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NEET NEET Physics Current Electricity
An electron is performing circular orbit of radius r and angular velocity omega. Find the magnetic field at centre.
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14th January 2019
8:04 PM
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CBSE XII Science Physics Atoms
What is the order of velocity of an electron in a H-atom in ground state?
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30th January 2019
3:51 PM
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NEET NEET Physics
How the angular momentum of an electron in a hydrogen atom is proportional to r ( where r is radius of orbit)
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17th March 2019
6:48 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom acquired as a result of photon emission will be (1) 25m/24hR (2) 24m/25hR (3) 24hR/25m (4) 25hR/24m
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18th March 2019
9:41 AM
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NEET NEET Physics Dual Nature of Matter and Radiation
Let F1 be the frequency of second line of Lyman series and F2 be the frequency of first line of Balmer series then frequency of first line ofLyman series is given by (1) F1-F2 (2) F1+F2 (3) F2-F1 (4)F1F2/F1+F2
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18th March 2019
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NEET NEET Physics Dual Nature of Matter and Radiation
In the Bohr model of a hydrogen atom, the centripetal force is furnished by the coulomb attraction between the proton and the electron. If a is the radius of the ground state orbit, m is the mass and e is the charge on the electron and v is the vaccum permittivity, the speed of the electron is
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19th March 2019
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NEET NEET Physics Dual Nature of Matter and Radiation
If potential energy of an electron in a hydrogen atom in first excited state is taken to be zero, kinetic energy (in eV) of an electron in ground state will be
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19th March 2019
9:11 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
If element with principal quantum number n>4 were not allowed in nature, then the number of possible elements would be
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20th March 2019
10:18 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
The magnetic field induction produced at the centre of orbit due to an electron revolving in nth orbit of hydrogen atom is proportional to
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20th March 2019
10:20 PM
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NEET NEET Physics Dual Nature of Matter and Radiation
Ratio of magnetic dipole moment to the angular momentum for hydrogen like atoms is ( e and m are electronic charge and mass respectively)
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20th March 2019
10:22 PM
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JEE Main Physics
In the line spectra of hydrogen atom difference between longest and shortest wavelengths of lyman series is 304 A°.the corresponding difference for the paschan series is
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9th September 2020
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CBSE XI Science Chemistry Structure of Atom
the energy of an electron in the first orbit of H- atom is -13.6eV the possible energy values of the excited state for electron in bohr orbits of Li2+ ions is/are A) -3.4eV B) -30.6eV C) -13.6eV D) All of the above
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3rd July 2021
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NEET NEET Chemistry Atomic Structure
Solve this plz !
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16th July 2021
8:42 AM
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CBSE XI Science Chemistry Structure of Atom
borhn atomic model explanation
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28th September 2021
7:45 AM
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NEET NEET Chemistry Atomic Structure
let 10^-16 J of light energy is required by the interior of human eye to see an object. The number of photons of green light (ý=550)needed to see the object are approximately equal to
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9th July 2022
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CBSE IX Science Is Matter Around Us Pure?
drawback of bohr's atomic model
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8th March 2023
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CBSE IX Chemistry Structure of the Atom
what is bohr and bury theory
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8th March 2023
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NEET NEET Chemistry
calculate the energy in calories required to produce from neutral he atoms,1 mole of he+ ions using Bohr equation
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19th April 2023
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CBSE XI Science Chemistry Structure of Atom
the energy of a photon is 3.87 into 10^-20 joule calculate it's wave length
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23rd September 2023
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NEET NEET Chemistry Atomic Structure
if threshold wavelength for ejection of electron from metal is 330 nm then work function for the photoelectric emission is
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18th November 2023
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