Question
For the telescope described in, what is the separation between the objective lens and the eyepiece?
✓
Answer
Focal length of the objective lens, f0 = 140 cm
Focal length of the eyepiece, fe = 5 cm
In normal adjustment, the separation between the objective lens and the eyepiece
= fo + fe = 140 + 5 = 145 cm
Focal length of the eyepiece, fe = 5 cm
In normal adjustment, the separation between the objective lens and the eyepiece
= fo + fe = 140 + 5 = 145 cm
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