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power 4d VIP POWER 4D MKTHE > · Join group. About this group. AKI AKI SCAMER TAK BOLEH COPY CARTA & NOS ORANG LAIN.. To find the focal length of the combination of two thin lenses in contact, we can follow these steps: Step 1: Identify the Powers of the Lenses We have two lenses: - Lens 1 has a power ( P1 = +4

power4d, Answer: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. also.