Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 22

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Using Bohr's formula for energy quantization, the ionisation potential of first excited state of hydrogen atom is

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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 23

Which of the following cannot be the value of ionisation energy for a hydrogen atom?

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 24

Which series of hydrogen atom lie in infrared region?

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 25

Three energy levels

L_{1}, L_{2}

and

L_{3}

of a hydrogen atom correspond to increasing values of energy i.e.,

E_{L_{1}} < E_{L_{2}} < E_{L_{3}} .

If the wavelength corresponding to the transitions

L_{3}

to

L_{2}, L_{2}

to

L_{1}

and

L_{3}

to

L_{1}

are

λ_{3}, λ_{2}

and

λ_{1}

respectively then

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 26

If the wavelength of first member of Lyman series is

λ

then calculate the wavelength of first member of Pfund series

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 27

In Bohr's model of the hydrogen atom, the ratio between the period of revolution of an electron in the orbit of

n = 1

to the period of revolution of the electron in the orbit

n = 2

is

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

How many times do the electron go round the second Bohr orbit in a second?

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 30

If radius of first orbit of hydrogen atom is

5.29 \times 10^{- 11} m

, the radius of fourth orbit will be

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Gamma Question Bank for Engineering Physics>Chapter 28 - Atoms>Assignment Set-2>Q 31

Bohr's atomic model is applicable for