1. an object is placed in front of a convex lens with a focal length of 7 cm. The image formed is at a distance of 29 cm
Posted: Thu Apr 28, 2022 9:22 am
1. an object is placed in front of a convex lens with a focal
length of 7 cm. The image formed is at a distance of 29 cm behind
the lens. The object distance is __ cm
2. Four identical light bulbs of 140 ohms are connected in
series. The equivalent resistance is __ ohms
length of 7 cm. The image formed is at a distance of 29 cm behind
the lens. The object distance is __ cm
2. Four identical light bulbs of 140 ohms are connected in
series. The equivalent resistance is __ ohms