To simplify the expression \(\frac{\sqrt{10}}{\sqrt{2}}\), you can use the property of square roots that states \(\frac{\sqrt{a}}{\sqrt{b}} = \sqrt{\frac{a}{b}}\).
So, we have:
\[ \frac{\sqrt{10}}{\sqrt{2}} = \sqrt{\frac{10}{2}} = \sqrt{5} \]
Therefore, the expression in simplest radical form is:
\[ \sqrt{5} \]