For a compound microscope, magnifying power MP = me​ x m0​ When the final image is at least distance of distance vision then Me​ = 1 + fe​D​ ∴ MP = m0​[1+fe​D​] ⇒ - 35 = m0​[1+1024​] ⇒ - 35 = m0​ × 35 ⇒ m0​ = -10 The negative sign shows that the image formed by objective is inverted