Q32.If the de Broglie wavelength of the electron in nth Bohr orbit in a hydrogenic atom is equal to 1.5πa0 (a0 is Bohr radius ), then the value of nz is: (1) 1.50 (2) 1.0 (3) 0.4 (4) 0.75
What This Question Tests
This question tests the application of de Broglie's wavelength equation for an electron in a Bohr orbit and the formula for the radius of a Bohr orbit in a hydrogenic atom.
Concepts Tested
Formulas Used
2πr_n = nλ
r_n = a_0 * n²/Z
📚 NCERT Sections This Tests
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.
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
- Atomic Structure
- Topic
- Bohr's model and de Broglie wavelength
- Year
- 2019
- Shift
- 12 Jan Shift 2
- Q Number
- Q32
- Type
- Numerical
- NCERT Ref
- Class 11 Chemistry Ch 2: Atomic Structure
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