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An element having an atomic radius of 0....

An element having an atomic radius of 0.14 nm crystallises in a fcc unit cell. What is the length of side of the cell ?

A

0.56 nm

B

0.24 nm

C

0.96 nm

D

0.4 nm

Text Solution

Verified by Experts

The correct Answer is:
D
For fcc unit cell , `r=(sqrt2)/(4)a`
`rArr " " 0.14=(sqrt2)/(4)a`
`a=(4xx0.14)/(sqrt2)=0.396nm=0.4nm`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLID STATE-EXERCISE 1
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