Live 4D2U Results - Keputusan 4D - Magnum 4D, Toto,

power 4dAnswer:the power of a convex lens is always positive. as you can see here the power is +4D, therefore the nature of the lens is that it is a convex lens. we know, P = 1f. alsoLatest Live 4D Results for Magnum 4D, Sports Toto 4D, Damacai 1+3D, Diriwan 88 Lotto 4D, Sarawak Special Cash Sweep 4D, STC 4D, Singapore Pools 4D + Toto