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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
- The resistance in the two arms of the meter bridge are 5Ω and RΩ, respectively
- A parallel plate air capacitor of capacitance C is connected to a cell of emf
- In a franhofer diffraction experiment at a single slit using a light of wavelength
- The horizontal component of earth’s magnetic field at a place is 3×10⁻⁴ T
- An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
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.”