Three rods of equal of length are joined to from an equilateral triangle ABC. D is the midpoint of @PhysicsMasterAcademy

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Three rods of equal of length are joined to from an equilateral triangle ABC. D is the midpoint of AB. The coefficient of linear expansion is α1 for AB and α2 for AC and BC . If the distance DC remains constant for small changes in temperature then,| class 11 ncert exemplar problems physics solution by ujwal Kumar physics master | physics master academy is best coaching for all physics students. | ujwal kumar is best physics teacher of neet, JEE-Mains in delhi
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