Answer:
Option B, 1000 X
Step-by-step explanation:
The simple formula to find the magnification strength of compound light microscope is to multiply the magnification power of eyepiece lens by the objective lens power.
For example – if an eyepiece has power of10x and objective lens has power of 20x , then the highest magnification could be 10 X 20 i.e 200
However, the maximum magnification power of a lens is 1000x
Thus, option B is correct