Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 9

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The angular momentum of an electron in a hydrogen atom is proportional to (where $n$ is principal quantum number)

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Important Questions on Atoms

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 10

When an electron in hydrogen atom is taken from fourth excited state to ground state

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 11

What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is

- 0.544 e V :

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 12

The energies of three conservative energy levels

L_{3}

,

L_{2}

and

L_{1}

of hydrogen atom are

E_{0}, \frac{4 E_{0}}{9}

and

\frac{E_{0}}{4}

respectively. A photon of wavelength

λ

is emitted for a transition

L_{3}

to

L_{1} .

What will be the wavelength of emission for transition

L_{2}

to

L_{1} ?

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 13

The ground state energy of

H

-atom is

13.6 eV

. The energy needed to ionize

H

-atom from its second excited state is

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 14

The product of angular speed and tangential speed of electron in

n^{th}

orbit of hydrogen atom is

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 15

The speed of an electron in the

4^{th}

orbit of hydrogen atom is

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 20

In which transition of a hydrogen atom, photons of lowest frequency are emitted?

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 21

Total energy of an electron in the hydrogen atom in the ground state is

- 13.6 eV .

The potential energy of this electron is