Circular beam of uniform strength can be made by varying the diameter

1.	Circular beam of uniform strength can be made by varying the diameter in such way that
A.	M/Z is constant
B.	σ/Y is constant
C.	M/R is constant
D.	E/R is constant
Answer» B. σ/Y is constant

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Circular beam of uniform strength can be made by varying the diameter in such way that

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