JEE Main 2019 — Solid State Question with Solution
From: JEE Main 2019 (Online) 11th January Evening Slot
Question
The radius of the largest sphere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is represented by 'a')
Choose an option
Show full solutionCorrect option: B
Correct answer
B0.067 a
Step-by-step explanation
a = 2(R + r)
......(1)
For bcc, = 4R
Using (i) and (ii)
r =
r = 0.067 a
......(1)
For bcc, = 4R
Using (i) and (ii)
r =
r = 0.067 a
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This is a previous-year question from JEE Main 2019, covering the Solid State chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.