Two similar round bars $A$ and $B$ are each $30 c m$ long as shown in Fig. 10.74.

The ratio of the energies stored by the bars $A$ and $B$ , $<$

- 1
  $\frac{3}{2}$
- 2
  
  $1.0$
- 3
  
  $\frac{5}{8}$
- 4
  
  $\frac{2}{3}$

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