CBSE Class 10 Maths (Standard) 2023 · Paper 30/5/1 · Question 33(b)

Two circles with centres $O$ and $O^{\prime }$ of radii $6$ cm and $8$ cm, respectively intersect at two points $P$ and $Q$ such that $OP$ and $O^{\prime }P$ are tangents to the two circles. Find the length of the common chord $PQ$.