| ⇦ | 
| ⇨ |
In which of the following systems will the radius of the first orbit (n=1) be minimum?
Options
(a) Single ionised helium
(b) Deutron atom
(c) Hydrogen atom
(d) Doubly ionised lithium
Correct Answer:
Doubly ionised lithium
Explanation:
r ∝ 1 / Z. For doubly ionised lithium, Z = 3
.·. r will be minimum.
Related Questions: - what should be the velocity of an electron so that its momentum becomes equal
- A body initially at rest is moving with uniform acceleration a m/s²
- The drift velocity of the electrons in a copper wire of length 2 m under
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- what should be the velocity of an electron so that its momentum becomes equal
- A body initially at rest is moving with uniform acceleration a m/s²
- The drift velocity of the electrons in a copper wire of length 2 m under
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
“r ∝ 1 / Z. For doubly ionised lithium, Z = 3
.·. r will be minimum.”