Question

An object is kept at 60 cm
in front of a convex lenss
its real
image is formed at 20cm from
the lense find the focal length of
the lense. ?​

Answer 1

Explanation:

Its real and inverted image is formed ag a distance of 20cm from the lens. find the focal length of the lens.

u=-60v=201/f=1/v-1/u =1/20+1/60 =3+1 /60 =4/60 f=15 cm

Answer 2

Hope it helps uh mate. . . . .hehe