Question

the focal length of a converging lence is 20 a 2cm object is 60from a lence of refractive index is 1.5 find the radius 1 if the curve of the lence​

Answer 1

Answer:

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

Since 2F=40 cm

It is given that object is kept at 60 cm from center of curvature since object is beyond 2F.

Nature of image → Real and inverted

Size of image → Smaller

Position → Between F and 2F on other side of lens.