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COMEDK20269 May 2026Evening ShiftPhysicsMechanical Properties of SolidsActual

A wire, made of a certain material of length-l and area of cross section-a can withstand a maximum load =W without breaking. If, another wire of the same material and cross-sectional area is used with double the original length, what will be the maximum load that the wire can withstand, without breaking?

Options

  1. AWould be four times =4W
  2. BWill be doubled to 2W
  3. CRemains the same =W
  4. DWill be halved to 0.5W

Correct answer

C. Remains the same =W

Step-by-step solution

Breaking stress is a property of the material and is independent of the dimensions of the wire. The maximum load a wire can withstand is given by the product of breaking stress and the cross-sectional area. Maximum load = Breaking stress Area of cross section Since the material and the cross-sectional area of the new wire are the same as those of the original wire, the breaking stress and area remain unchanged. Therefore, the maximum load the wire can withstand remains the same, which is W . Answer: Remains the sam

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