Question

Find the power of convex lens which forms a real and inverted image of magnification – ½ of an object placed at a distance of 32 cm from its optical centre..


*Answer :​

Answer 1

Step-by-step explanation:

Same size of image is formed by a convex lens only when the object is placed at a distance u=2f from the optical center and image is also formed at distance 2f on other side of lens.

⟹2f=50

⟹f=25cm

P=f(m)1=0.251

⟹P=+4D