Question:
Half part of the rear surface of a thin equiconvex lens of
Last updated: 6/9/2023
![Half part of the rear surface of a thin equiconvex lens of](https://media.kunduz.com/media/sug-question-candidate/20210516130808645103-3257151.jpg?h=512)
Half part of the rear surface of a thin equiconvex lens of focal length 40 cm and refractive index 1 5 is silvered If parallel rays are incident on this lens then the distance between the two focii is