Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Calculate the percentage of packing efficiency in simple cubic unit cell.
ChemistrySolid StateJEE Main
Solution:
1128 Upvotes Verified Answer
The correct answer is: 52.40
In simple cubic, packing efficiency

= Volume of one atom × 1 0 0 Volume of unit cell

= 4 3 πr 3 8r 3  × 100 =  π 6  × 100 = 52.4%

where, r = radius of one sphere or atom.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play