SSC JE Mechanical Engineering 2015 Paper

Question : 134 of 200

Marks: +1, -0

Two shafts, one solid and the other hollow, are made of the same materials and are having same length and weight. The hollow shaft as compared to solid shaft is

More strong
Less strong
Have same strength
None of the above

Validate

Solution:

T_\hollow/T_\solid={b^4-a^4}/{br^3}

T_\hollow/T_\solid={1+c^2}/√{1-c^2}

Hence the hollow shaft as compared to solid shaft is more strong.

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