Question

a convec lens of focal length 10 cm placed at a distance of 12 cm from a wall how far from the lens ,hold an obj is placed so as to form in real image on the wall​

Answer 1

Answer:

This means that the distance of image from the convex lens or image distance will be 12 cm. Since a real image is fomred on the right side of the lens, so this image distance will be positive. Thus, the obect should be place at a distance of 60 cm in front of the convex lens.

Answer 2

Answer:

This means that the distance of image from the convex lens or image distance will be 12 cm. Since a real image is fomred on the right side of the lens, so this image distance will be positive. Thus, the obect should be place at a distance of 60 cm in front of the convex lens.

Explanation:

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