The focal length of a lens of power + 4D is

power 4dPower4D dioperasikan oleh agen Power 4D terbaik yang memiliki lisensi resmi dari pihak berwenang. Keamanan data pemain dijamin melalui sistem enkripsi terbaru 4d teknologiTwo lenses have power of (i) + 2 d (ii) -4D. What is the nature and focal length of each lens? b. An object is kept at a distance of 100 cm from lens of power -4D. Calculate the image distance.