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
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
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answerhappygod
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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
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