Published by:
CGP EDU Academic Team
Published on: August 20, 2026
A metal rod having a coefficient of linear expansion of 
has a length of 
at 
. The temperature at which it is shortened by 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
We know that, 
where, 
change in length,
initial length
and 
change in temperature.
So, 
In this case, 
,
We get, 
Since, present temperature 
The final temperature should be 
.
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