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If the series limit frequency of the Lyman series is $v_{L},$ then the series limit frequency of the Pfund series is

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Important Questions on Atoms, Molecules and Nuclei

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 49

For Balmer series, wavelength of first line is

λ_{1}

and for Brackett series, wavelength of first line is

λ_{2}

then their ratio

\frac{λ_{1}}{λ_{2}}

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 50

The ratio of the longest to the shortest wavelengths in Brackett series of hydrogen spectra is

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 51

The shortest wavelength for Lyman series is

912 A

. What will be the longest wavelength in Paschen series?

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 53

If an electron in a hydrogen atom jumps from the

3^{rd}

orbit to the

2^{nd}

orbit, it emits a photon of wavelength $\lambda$. When it jumps from the

4^{th}

orbit to the

3^{rd}

orbit, the corresponding wavelength of the photon will be

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 56

Energy levels of a certain atom corresponding to increasing values of energy are such that

E_{A} < E_{B} < E_{C} .

λ_{1}, λ_{2}, λ_{3}

are the
wavelengths of radiations corresponding to the transitions

C

B, B

A

and

C

A

respectively, which of the following statements is correct?

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 57

As an electron makes a transition from an excited state to the ground state of a hydrogen like atom/ion

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 58

An electron beam is accelerated by a potential difference V to hit a metallic target to produce X-rays. It produces continuous as well as characteristic X-rays. If

λ_{\min}

is the smallest possible wavelength of X-ray in the spectrum, the variation of

\log λ_{\min}

with log

V

is correctly represented in

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 12 - Atoms, Molecules and Nuclei>Competitive Thinking>Q 59

Wavelength of characteristic X-ray depends on which property of target?

If the series limit frequency of the Lyman series is vL, then the series limit frequency of the Pfund series is

Important Questions on Atoms, Molecules and Nuclei

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If the series limit frequency of the Lyman series is $v_{L},$ then the series limit frequency of the Pfund series is