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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: - A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- Laser beams are used to measure long distance because
- The sodium nucleus ₁₁Na²³ contains
- Identify the paramagnetic substance
- A person has a minimum distance of distinct vision as 50 cm. The power of lenses
Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- Laser beams are used to measure long distance because
- The sodium nucleus ₁₁Na²³ contains
- Identify the paramagnetic substance
- A person has a minimum distance of distinct vision as 50 cm. The power of lenses
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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“r ∝ 1 / Z. For doubly ionised lithium, Z = 3
.·. r will be minimum.”