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                                    (3) Gases(4) P5 The ratio of radii of two wires of same material is2: 1. If these wires are stretched by equal force,the ratio of stresses produced in them is13.(4) 4 1hon nhreaking 14 | 
                            
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Answer»  Stress = Force / Area of cross section. Area of cross section depends on square of radius, so the ratio of areas is 4:1 Stress is inversely proportional to area so the ratio of stresses will be 1:4  | 
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