In a compound microscope, the image formed by the objective lens is at a distance of 3.0cm from the eye lens. Calculate the focal length of the eye lens
-
A.
0.3cm -
B.
2.7cm -
C.
3.4cm -
D.
8.3cm
Correct Answer: Option C
Explanation
(frac{1}{f} = frac{1}{u} + frac{1}{v} = frac{1}{3} – frac{1}{25} = frac{22}{75})
f = 3.4cm