Q28.Which of the plots shown in the figure represents speed (v) of the electron in a hydrogen atom as a function of the principal quantum number (n) ? (1) B (2) D (3) C (4) A
What This Question Tests
This question tests the knowledge of the Bohr model for the hydrogen atom, specifically how the speed of an electron varies with the principal quantum number (n), and identifying the correct graphical representation.
Concepts Tested
Formulas Used
v_n = v₀/n
📚 NCERT Sections This Tests
12.6 — (A) Using The Bohr’S Model Calculate The Speed Of The Electron In A
Physics Class 12 · Chapter 12
12.6 (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.
12.7 — The Radius Of The Innermost Electron Orbit Of A Hydrogen Atom Is
Physics Class 12 · Chapter 12
12.7 The radius of the innermost electron orbit of a hydrogen atom is 5.3×10–11 m. What are the radii of the n = 2 and n =3 orbits?
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
📋 Question Details
- Chapter
- Atoms
- Topic
- Bohr model of hydrogen atom
- Year
- 2012
- Shift
- 26 May Online
- Q Number
- Q28
- Type
- Graph based
- NCERT Ref
- Class 12 Physics Ch 12: Atoms
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