If n is the ratio of internal and external diameters of a hollow shaft, the ratio of the weight of the hollow shaft and that of solid shaft of same strength, will be (A) (1 - n²)/(1 - n²)1/2 (B) (1 - n²)/(1 - n 4 )2/3 (C) (1 + n 3 )/(1 + n 4 )1/2 (D) (1 + n 1 )/(1 + n 4 )2/3

If n is the ratio of internal and external diameters of a hollow shaft, the ratio of the weight of the 

hollow shaft and that of solid shaft of same strength, will be 

(A) (1 - n²)/(1 - n²)1/2

(B) (1 - n²)/(1 - n

4

)2/3

(C) (1 + n

3

)/(1 + n

4

)1/2

(D) (1 + n

1

)/(1 + n

4

)2/3

by

1 Answer

Answer :

(B) (1 - n²)/(1 - n

4

)2/3

by

Related questions

The ratio of strength of a hollow shaft to that of a solid shaft subjected to torsion if both are of the same material and of the same outer diameters, the inner diameter of hollow shaft being half of the outer diameter is a. 15/16 b. 16/15 c. 7/8 d. 8/7

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