Question

the object is at a distance of 60 cm from a converging lens of focal length 20cm find image distance​

Answer 1

Answer:

formula 1/v-1/u=1/f hai

Yeah wala formula lagalo answer to aa hi jaana hai

Try at your own

You will feel happy

Answer 2

Answer:30 cm

Explanation:

1/v-1/u=1/f

1/v-(-1/u)=1/f (sign convention)

1/v=1/f-1/u

1/v=1/20-1/60

1/v=3/60-1/60

1/v=2/60

V=30