Question

If a magnifying glass uses a convex lens of focus length 6.25 cm when it is held 5.20 cm in front of an object what is the image distanceMind your minus signs Unit cm

Answer 1

30.95 cm

Step-by-step explanation:

The focal length f, the object distance do, and the image distance di are related with the following equation:

`(1)/(f)=(1)/(d_0)+(1)/(d_i)`

So, replacing the values, we get:

`(1)/(6.25)=(1)/(5.20)+(1)/(d_i)`

Then, solving for di, we get:

Therefore, the image distance is 30.95 cm