33 past-paper questions on Atoms from ISC Class 12 Physics papers (2027-2018), newest first, in full. Questions 21-33 are on this page, 20 to a page. Tap "Show answer" under a question to see its answer.
Nothing matches. Try fewer letters.
Answer the following.
Draw: graph of binding energy of a nucleus per nucleon versus its mass number
No answer yet.
Answer the following.
No answer yet.
Answer the following.
No answer yet.
Answer the following.
No answer yet.
Choose the correct option.
No answer yet.
Derive the following.
Given: Centripetal electrostatic force $\frac{m v^2}{r} = \frac{1}{4\pi\varepsilon_0} \frac{e^2}{r^2}$ and Bohr's quantization condition $m v r = \frac{n h}{2\pi}$
To show: $r_n = \frac{n^2 h^2 \varepsilon_0}{\pi m e^2}$
No answer yet.
Draw the following.
Draw: Energy level diagram of hydrogen atom showing Lyman and Balmer transitions
Must show: Energy levels for n=1, 2, 3, ... with energies, Absorption lines of Lyman series, Emission lines of Balmer series
No answer yet.
Answer in one word.
No answer yet.
Answer the following.
No answer yet.
Answer the following.
No answer yet.
Solve the following.
No answer yet.
Draw the following.
Draw: energy level diagram for Hydrogen atom showing at least four lowest energy levels and transitions responsible for emission of Balmer series
No answer yet.
Choose the correct option.
No answer yet.