Bond angle, bond length and hybridisation in ${\mathrm{SO}}_2$ molecule respectively are

Total number of electron pair $=\frac{6+0}{2}=3$

Total number of bond pair $=2$

Total number of lone pair $=(3-2)=1$

Hybridisation $={\mathrm{sp}}^2$

So, its shape $=$ V-shaped

$\Rightarrow$ bond angle $=119.5°$ and bond length $=143\mathrm{pm}$