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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.
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If 75% of the radioactive reaction is completed in 2 hrs, what would be
- The radius of curvature of the convex face of a plano-convex lens is 12 cm
- A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
- If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
- The work done in which of the following processes is zero?
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.”