A metallic bar of Young's modulus, 0.5 10^ 11 N ,m^ -2 and coefficient of linear thermal expansion 10^ -5 ^ C...

Question

A metallic bar of Young's modulus, 0.5 10^ 11 N ,m^ -2 and coefficient of linear thermal expansion 10^ -5 ^ C ^ -1 , length 1 m and area of cross-section 10^ -3 m^2 is heated from 0^ to 100^ without expansion or bending. The compressive force developed in it is:

Accepted Answer

(C)

NEET 2025 Physics question

Solution