Question

What are the focal lengths values of available concave lenses?

Answer 1

The distance between the concave lens and the screen, LI2 is measured as v cm.

Using the values of u and v, the focal length of the concave lens is calculated using the formula, f= uv/u-v.

To repeat the experiment, remove the concave lens and bring the screen to the initial position.



Hope this will help u.. :-)