Question:
A lady uses $+1.5 \mathrm{D}$ glasses to have normal vision from $25 \mathrm{~cm}$ onwards. She uses a $20 \mathrm{D}$ lens as a simple microscope to see an object. Find the maximum magnifying power if she uses the microscope (a) together with her glass (b) without the glass. Do the answers suggest that an object can be more clearly seen through a microscope without using the correcting glasses?
Solution:
