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thin brass sheet at 10°C and a thin stee...

thin brass sheet at 10°C and a thin steel wheet at 20°C have the same surface area. The common temperature at which both would have the same area is (Coefficient of linear expansion for brass and steel are respectively, 19x10-6/°C are 11 x 10-6/°C) 1)-3.75°C 2) -2.75°C 3) 2.75°C 4)3.75°C dulum alool, citos na

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