Ray Optics and Optical Instruments

Question: To increase the magnifying power of telescope ($f_o$ = focal length of the objective and $f_e$ = focal length of the eye lens)

1) $f_o$ should be large and $f_e$ should be small

2) $f_o$ should be small and $f_e$ should be large

3) $f_o$ and $f_e$ both should be large

4) $f_o$ and $f_e$ both should be small

Solution:

Explanation: No Explanation

Microscope and Telescope

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