During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?
(A) 4 tonnes/cm2
(B) 8 tonnes/cm2
(C) 16 tonnes/cm2
(D) 22 tonnes/cm2
(E) none of the above
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