Atoms and Nuclei-Hydrogen Spectrum (NEET Physics): Questions 7 - 11 of 14

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Question number: 7

» Atoms and Nuclei » Hydrogen Spectrum

MCQ▾

Question

Which of the series of hydrogen spectrum are not in the visible region?

(1) Lyman series (2) Paschen series

(3) Bracket series (4) Balmer series

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

2 and 4 are correct

b.

1 and 3 are correct

c.

1 and 2 are correct

d.

1, 2 and 3 are correct

Question number: 8

» Atoms and Nuclei » Hydrogen Spectrum

MCQ▾

Question

The third line of Balmer series of an ion equivalent to hydrogen atom has wavelength of 108.5 nm The ground state energy of an electron of this ion will be

Choices

Choice (4) Response

a.

3.4 eV

b.

122.4 eV

c.

13.6 eV

d.

54.4 eV

Question number: 9

» Atoms and Nuclei » Hydrogen Spectrum

Assertion-Reason▾

Assertion (Ꭺ)

Hydrogen atom consists of only one electron but its emission spectrum has many lines.

Reason (Ꭱ)

Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 10

» Atoms and Nuclei » Hydrogen Spectrum

MCQ▾

Question

The ratio of the frequencies of the long wavelength limits of Lyman and Balmer series of hydrogen spectrum is

Choices

Choice (4) Response

a.

27: 5

b.

5: 27

c.

4: 1

d.

1: 4

Question number: 11

» Atoms and Nuclei » Hydrogen Spectrum

MCQ▾

Question

he energy levels of the hydrogen spectrum are shown in figure. There are some transitions. A, B, C, D and E. Transition A, B and C respectively represent

Hydrogen Spectrum and energy levels depicted

Hydrogen Spectrum and Energy Levels Depicted

The energy levels of the hydrogen spectrum are shown in figure.

Choices

Choice (4) Response

a.

Series limit of Lyman series, third spectral line of Balmer series and second spectral line of Paschen series

b.

Ionization potential of hydrogen, second spectral line of Balmer series and third spectral line of Paschen series

c.

Series limit of Lyman series, second spectral line of Balmer series and third spectral line of Paschen series

d.

First spectral line of Lyman series, third spectral line of Balmer series and the second spectral line of Paschen series.

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