A) \[r=\frac{2T\,\cos \theta }{hdg}\]
B) \[r=\frac{hdg}{2T\,\cos \theta }\]
C) \[r=\frac{2T\,dgh}{\cos \theta }\]
D) \[r=\frac{T\cos \theta }{2hdg}\]
Correct Answer: A
Solution :
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