Question

23) in which optical instrument focal length of objective is greater then eye piece ?
a) Astronomical telescope b) simple microscope c) compound microscope d) periscope.​

Answer 1

Answer:

compound microscope

Explanation

A compound microscope is composed of two lenses: an objective and an eyepiece. The objective forms the first image, which is larger than the object. This first image is inside the focal length of the eyepiece and serves as the object for the eyepiece. The eyepiece forms final image that is further magnified.

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Answer 2

Answer:

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