Answer:The value of [tex]\frac{b}{a}=4[/tex] .Step-by-step explanation:As given in the question [tex]\frac{2a}{b}=\frac{1}{2}[/tex] Now find out the value of [tex]\frac{b}{a}.[/tex][tex]\frac{b}{a}=\frac{2\times 2}{1}[/tex][tex]\frac{b}{a}=2\times 2[/tex][tex]\frac{b}{a}=4[/tex]Therefore the value of [tex]\frac{b}{a}=4[/tex] .