`h_(1)= +1.5 cm, f= +15 cm, u = -20 cm`

As we know, `(1)/(f)=(1)/(v)-(1)/(u)rArr(1)/(v)=(1)/(f)+(1)/(u)`

`(1)/(v)=(1)/((+15))+(1)/((-20))=(1)/(15)-(1)/(20)=+(1)/(60)" "therefore" "v = +60 cm`

Now, `(h_(2))/(h_(1))=(v)/(u) rArr h_(2) = (v xx h_(1))/(u)=(+60 xx 1.5)/(-20) = -4.5 cm`

Nature : Real and inverted.