Question

the divergent lens has focal length of 20cm.At what distance should an object from the lens be placed so that an image is formed 10 cm away from the lens ?what is the magnification produced by the lens?
correct answer must be brainalist person ​

Answer 1

Explanation:

Given, u=−mf

∴v1−(−mf)1=−f1

⇒v1=−f1(1+m1)

⇒−fv=m+1m

⇒−uv=(1+m1)

Answer 2

Answer:

I think convergent lens