A) 0.06m
B) 0.08m
C) 0.12m
D) 0.18m
Correct Answer: D
Solution :
For no deflection \[\frac{{{M}_{1}}}{d_{1}^{3}}=\frac{{{M}_{2}}}{d_{2}^{3}}\] \[\frac{{{M}_{1}}}{{{M}_{2}}}=\frac{d_{1}^{3}}{d_{2}^{3}}\] \[\frac{27}{8}={{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{3}}\Rightarrow \frac{{{d}_{1}}}{{{d}_{2}}}=\frac{3}{2}\] \[\frac{{{d}_{1}}}{0.12}=\frac{3}{2}\] \[{{d}_{1}}=0.18\,m\]You need to login to perform this action.
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