Physics · JEE

Bohr model, energy levels, hydrogen spectrum Mock Test for JEE

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Syllabus context

Part of Atoms and Nuclei in JEE Main Physics.

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Q1PhysicsUnit 18: Atoms and Nuclei

When a hydrogen atom is raised from the ground state to an excited state.

Q2PhysicsUnit 18: Atoms and Nuclei

What is an energy gap?

Q3PhysicsUnit 18: Atoms and Nuclei

The wavelength of a certain electron transition in the hydrogen spectrum is 4864 A. Identify the transition.

Q4PhysicsUnit 18: Atoms and Nuclei

The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is

Q5PhysicsUnit 18: Atoms and Nuclei

Fraunh offer line of the solar system is an example of:

Q6PhysicsUnit 18: Atoms and Nuclei

An electron collides with a Hydrogen atom in its ground state and excites it to

n=3

state. The energy given to the Hydrogen atom in his inelastic collision (neglecting the recoil of Hydrogen atom) is

Q7PhysicsUnit 18: Atoms and Nuclei

Fill in the blank. In a Ruby laser, the colour of laser light is due to

Q8PhysicsUnit 18: Atoms and Nuclei

An electron with energy 12.09 eV strikes hydrogen atom in ground state and gives its all energy to the hydrogen atom. Therefore hydrogen atom is excited to

Q9PhysicsUnit 18: Atoms and Nuclei

The atoms of sample

A

after passing of light through it

Q10PhysicsUnit 18: Atoms and Nuclei

Let

A_{n}

be the area enclosed by the

n^{t h}

orbit in a hydrogen atom. The graph of

\ln \left(A_{n} / A_{l}\right)

against

\ln (n)

This question has multiple correct options

Q11PhysicsUnit 18: Atoms and Nuclei

With increasing quantum number, the energy difference between adjacent energy levels in atoms

Q12PhysicsUnit 18: Atoms and Nuclei

A double ionized lithium atom is hydrogen-like with atomic number 3 (a) Find the wavelength of the radiation required to excite the electron in

\boldsymbol{L} \boldsymbol{i}+

+ from the first to the third Bohr orbit. (lonization energy of the hydrogen atom equals

13.6 e V \lambda

(b) How many spectral lines are observed in the emission spectrum of the above excited system?

Q13PhysicsUnit 18: Atoms and Nuclei

The characteristic spectrum of an atom is observed as

Q14PhysicsUnit 18: Atoms and Nuclei

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be.

Q15PhysicsUnit 18: Atoms and Nuclei

The manifestation of band structure in solids is due to

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