An absorption line of the lowest frequency in the transition of hydrogen spectra is:

1. n=1 to n=2

2. n=3 to n=8

3. n=2 to n=1

4. n=8 to n=3

The frequency $\mathcal{v}$ of certain line of the Lyman series of the atomic spectrum of hydrogen satisfies the following conditions:

(i) It is the sum of the frequencies of another Lyman line and a Balmer line.

(ii) It is the sum of the frequencies of a certain line, a Lyman line, and a Paschen line.

(iii)It is the sum of the frequencies of a Lyman and a Paschen line but no Bracket line. To what transition does $\mathcal{v}$ correspond?

(1) ${\mathrm{n}}_2=3 \mathrm{to} {\mathrm{n}}_1=1$

(2) ${\mathrm{n}}_2=3 \mathrm{to} {\mathrm{n}}_1=2$

(3) ${\mathrm{n}}_2=2 \mathrm{to} {\mathrm{n}}_1=1$

(4) ${\mathrm{n}}_2=4 \mathrm{to} {\mathrm{n}}_1=1$

In which of the following transitions of hydrogen atom, radiation of minimum frequency is emitted ? 

1.  n₂ = \(\infty\) to  n₁ = 1

2. n₂ = 2  to n₁ = 1

3.  n₂ = 3  to n₁ = 2

4.  n₂ = \(\infty\) to  n₁ = 3

For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength?

1.  n = 1 to n = 2

2.  n = 3 to n = 2

3.  n = 5 to n = 6

4.  n = 7 to n = 6

Calculate the spectral lines that are obtained in the visible region when an electron jumps from n=5 to n=1 hydrogen atom.

1. 3
2. 4
3. 6
4. 10