Plzz answer question no 8

Plzz answer question no 8 (a) x, 12 Mirror Formü 12 2 The irrzge Ormed by a convex mirror offocal length 30 cm is oce quarter of size of object. The distance of object the mirror is (b) 120cm (d) 60 cm A mzrror has a fæal length f. A real object is placed a ds-axe f m front of it from the pole, produces an