The focal length of the objective of a compound microscope is f o and its distance from the eyepiece is L . The object is placed at a distance u from the objective. For proper working of the instrument.

Question

Philoid · Accepted Answer

In compound microscope, we have two lens, one is objective lens and another is eyepiece .

The magnifying part is taken care by ‘eye piece’, another lens called ‘objective lens’ has the purpose to enlarge image of the object at distance less than the focal length of the eye piece.

The real, inverted image of the object AB forms in front of the eyepiece A’B’, when we place object slightly greater than the focal length of the converging lens.

This image formed acts as object and the final image A”B”.

Hence, L > u and L >2f_o.

The focal length of the objective of a compound microscope is fo and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument.

The focal length of the objective of a compound microscope is f_o and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument.