Q29.As an electron makes a transition from an excited state to the ground state of a hydrogen-like atom/ion (1) kinetic energy and total energy decrease but (2) its kinetic energy increases but potential energy potential energy increases and total energy decrease (3) kinetic energy, potential energy and total energy (4) kinetic energy decreases, potential energy decrease increases but total energy remains same
What This Question Tests
This question tests the conceptual understanding of how kinetic, potential, and total energies change during an electron transition from an excited state to the ground state in a hydrogen-like atom.
Concepts Tested
Formulas Used
E_n = -13.6 Z^2/n^2 eV
KE = -E
PE = 2E
📚 NCERT Sections This Tests
12.4 — The Ground State Energy Of Hydrogen Atom Is –13.6 Ev. What Are The
Physics Class 12 · Chapter 12
12.4 The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?
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.
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.
📋 Question Details
- Chapter
- Atoms
- Topic
- Energy levels in hydrogen atom
- Year
- 2015
- Shift
- 04 Apr
- Q Number
- Q29
- Type
- Conceptual
- NCERT Ref
- Class 12 Physics Ch 12: Atoms
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