GATE2019 CE-1: 33

Question

If the section shown in the figure turns from fully-elastic to fully-plastic, the depth of neural axis (N.A), $\overline{y}$, decreases by

• A. $10.75 \: mm$
• B. $12.25 \: mm$
• C. $13.75 \: mm$
• D. $15.25 \: mm$