The cross-section of a bar is subjected to a uniaxial tensile stress 'ρ'. The tangential stress on a plane inclined at θ to the cross-section of the bar would
A
ρsin2θ2
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B
ρsin2θ
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C
ρcos2θ2
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D
ρcos2θ
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Solution
The correct option is Aρsin2θ2 Normalstress=ρcos2θ Tangentialstess=ρsinθcosθ=ρsin2θ2