Presentasi 4DX |
power 4dHMP 4D memiliki 46. A convex lens of power +6 D is placed in contact with a concave lens of power –4D. What will be the nature and focal length of this combination ? (a) convex, 100 cm (b) convex, 50 cm
IDR 10.000
IDR 100.000
Disc -90%