the image of an object formed by a lens is of magnifications -1 . if the distance between the object image is 60 , what is the focal length of the lens ? if the object 20 cm toward the lens where will the image be formed ? state the reason and draw a ra diagram in support of your answer .
Answers
Answered by
1
Answer:
The magnification of -1 is possible in only convex lens. When the object is moved 20 cm towards the lens, so the new object distance will be = 30 cm - 20 cm = 10 cm. Since the new object distance is less than focal length of the lens, thus the image will be virtual, erect and magnified. The image will be formed on the same side as that of the object.
Similar questions