# Huygens ocular and exit pupil.

A Huygens ocular is constructed of 2 thin lenses of focal length 10 cm and 5 cm, respectively, separated by 7.5 cm. The ocular is used in an astronomical telescope whose objective is 30 cm to the left of the front lens of the ocular. What is the position of the exit pupil and what is the focal length of the ocular?

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104350

A Huygens ocular is constructed of 2 thin lenses of focal length 10 cm and 5 cm, respectively, separated by 7.5 cm. The ocular is used in an astronomical telescope whose objective is 30 cm to the left of the front lens of the ocular. What is the position of the exit pupil and what is the focal length of the ocular?

[The Huygens ocular is the combination of two plano convex lenses made of same material, the focal length of the field ...

#### Solution Summary

The problem is to find the position of the exit pupil and what is the focal length of the ocular.