Simple microscope is used to see the object first in blue light and then a red light. Due to the change from…
Simple microscope is used to see the object first in blue light and then a red light. Due to the change from blue to red light, its magnifying power
decreases
increases
remains same
first increases and then decreases
Solution
Magnifying power of a simple microscope
$=1+\frac{D}{f}$
Focal length of red light is greater than the focal length of blue light. Hence, the magnifying power will decrease.