Optics Question 362

Question: In a compound microscope, the focal lengths of two lenses are 1.5 cm and 6.25 cm an object is placed at 2 cm form objective and the final image is formed at 25 cm from eye lens. The distance between the two lenses is

[EAMCET (Med.) 2000]

Options:

A) 6.00 cm

B) 7.75 cm

C) 9.25 cm

D) 11.00 cm

Show Answer

Answer:

Correct Answer: D

Solution:

L=vo+ue=uofo(uofo)+feDfe+D

L=2×1.5(21.5)+6.25×25(6.25+25)=11 cm



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