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Needles has a sharp tip, because A) Effective pressure is more due to smaller area of contact 

Monjur Alahi

Needles has a sharp tip, because

A) Effective pressure is more due to smaller area of contact 

B) Effective pressure is less due to smaller area of contact 

C) Effective pressure is more due to larger area of contact 

D) Effective pressure is less due to larger area of contact


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1 Answers

Salim Ahmed Kawsar

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A) Effective pressure is more due to smaller area of contact

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