Question

A convergent doublet of separated lenses, corrected for spherical aberration, has resultant focal length of 10 cm. The separation between the two lenses is 2 cm. The focal lengths of the component lenses are :

Answer 1

Thank you for asking this question. The options for this question are missing, here are the missing options:

Option 1) 10 cm, 12 cm  

Option 2) 12 cm, 14 cm

Option 3) 16 cm, 18 cm  

Option 4) 18 cm, 20 cm

Answer:

The correct answer for this question is Option 4) 18 cm, 20 cm

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