Validating the Bohr's Model

Q.

Which of the following series of transitions in the spectrum of hydrogen atom falls in the visible region?

1. Lyman series

2. Balmer series

3. Paschen series

4. Brackett series

Q.

Explain the Balmer and Rydberg equations.

Q. the time period of ofa particle is 12 the phase diff between the position at t=3s and t=4s is

Q.

The above picture depicts the possible transitions of electron in Bohr's atomic model.
Match the transition lines to corresponding series.
$\begin{array}{cc}\text{p.}{L}_1& \text{i. Lyman}\\ \text{q.}{L}_2& \text{ii. Blamer}\\ \text{r.}{L}_3& \text{iii. Paschen}\\ \text{s.}{L}_4& \text{iv. None of these}\end{array}$

1. p-ii ; q-iii ; r-i ; s-iv

2. p-i ; q-I ; r-ii ; s-iii

3. p-iv; q-ii; r-i; s-iii

4. p-iii; q-i; r-ii; s-iv

Q. Which of the following doesn’t exist in the study of ray optics?

1. A virtual image
2. A real image
3. A virtual object
4. All of them exist

Q. prove that if a object has sam density as of water then it will will just float on water

Q. Which of the following doesn’t exist in the study of ray optics?

1. A virtual image
2. A real image
3. A virtual object
4. All of them exist