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A rod of length 1000 mm and co-efficient...

A rod of length `1000 mm` and co-efficient of linear expansion `alpha = 10^(-4)` per degree celsius is placed in horizontal smooth surface symmetrically between fixed walls separated by `1001 mm `. The young's modulus of rod is `10^(11)N//m^(2)`. If the temperature is increased by `20^@C`, then the stress developed in the rod is (in ` N//m^(2)`)

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A rod of length 1000 mm and co-efficient of linear expansion alpha=10^-4 per degree is placed symmetrically between fixed walls separated by 1001 mm. Young's modulus of the rod is 10^11N//m^2. If the temperature is increased by 20^@C, then the stress developed in the rod is ("in" N//m^2):

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