Question

an object is held 20 CM away from converging lens of focal length 10 cm find the position of the image formed​

Answer 1

1/f=1/v -1/u

f=+10

u=-10

v=+20/3

Answer 2

Answer:

u= -20cm, F=10cm, v=?

As we know,

1/v -1/u = 1/f( i )

= 1/v = 2-1/20

= v =20cm( ANSWER )