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JEE Main Physics question

PhysicsMechanical Properties of SolidsJEE Main

A 100 N force stretches the length of a hanging wire by 0.5 mm. The force required to stretch a wire of the same material and length but having four times the diameter, by 0.5 mm is

Answer: (D)

Solution

For the same elongation, length and material, (since is the same). .

Question ID VK-154927