Published by:
CGP EDU Academic Team
Published on: August 14, 2026
At 
, a brass wire of 
is hung from the ceiling. A small mass, 
is hung from the free end of the wire. When the wire is cooled down from 
to 
it regains its original length of 
. The value of 
is close to:
(Coefficient of linear expansion and Young's modulus of brass are 
and 
, respectively; 
)
A
B
C
Text Solution
Verified by ExpertsThe correct answer is:
-
(BONUS)
It is closest to 9.
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