Question

where will the image and what kind of image found when its focal length of a converging lens is 20cm and it is 60cm from the lens

Answer 1

Focal length = distance between focus and centre of curvature =20cm

since ,2F=40cm

It is given that object is kept at 60 cm from centre of curvature

since object at beyond 2F

nature of object =Real and Inverted

size of object =smaller than the object

position of object= Between the F and 2F on the other side of lens