A compound microscope has an objective and an eyepiece of focal lengths f_ o and f_ e …
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
A compound microscope has an objective and an eyepiece of focal lengths \(f_{o}\) and \(f_{e}\) , respectively. To obtain a large magnification of a small object, the microscope should have:
- \({f}_{{o}}\) and \({f}_{{e}}\) small, and \({f}_{{e}} \gt {f}_{{o}}\)
- \(f_{o}\) and \(f_{e}\) small, and \(f_{o} \gt f_{e}\)
- \({f}_{{o}}\) and \({f}_{{e}}\) large, and \({f}_{{e}} \gt {f}_{{o}}\)
- \({f}_{{o}}\) and \({f}_{{e}}\) large, and \({f}_{{o}} \gt {f}_{{e}}\)
Answer
(A) f _ o and f _ e small, and f _ e f _ o
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