An astronomical telescope has fₒ = 100 cm and initial eyepiece fₑ = 5 cm in normal adjustment. The eyepiece is replaced by another converging lens of focal length 10 cm. To restore normal adjustment, move the new eyepiece relative to the old position:
Physics · Geometrical optics · Optical Instruments & Magnifying Power
An astronomical telescope has fₒ = 100 cm and initial eyepiece fₑ = 5 cm in normal adjustment. The eyepiece is replaced by another converging lens of focal length 10 cm. To restore normal adjustment, move the new eyepiece relative to the old position:
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