A metallic bar of Young's modulus 
and coefficient of linear thermal expansion 
, length 1 m and area of cross-section 
is heated from 
to 
without expansion or bending. The compressive force developed in it is [NEET 2024]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, Young's modulus,
Coefficient of linear thermal expansion, 
Length, 
Area of cross section, 
We know that, stress 
Compressive force,
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