Q 9.25 What should be the distance between the object in figure 9.23 and the magnifying glass if the virtual image of each square in the figure is to have an area of 6.25 mm2. Would you be able to see the squares distinctly with your eyes very close to the magnifier?
Given:
Virtual image area = 6.25 mm2
Actual area = 1 mm2
We can calculate linear magnification as
we also know
Now, according to the lens formula
and
Since the image is forming at a distance which is less than 25 cm, it can not be seen by eye distinctively.