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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 particles are moving with same velocity, then maximum de Broglie wavelength will
- In a transistor the collector current is always less than the emitter current
- Height of geostationary satellite is
- A particle moves in a circle of radius 5 cm with constant speed and time period
- An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
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.”