Question

Two thin lenses of focal lengths f1 and f2 separated by a distance d have an equivalent focal length of 32 cm. The combination satisfies the conditions for minimum spherical aberration and is also achromatic. Find the values of f1, f2 and d. Assume that both the lenses are of the same material​

Answer 1

Explanation:

becky was planning an overseas holiday. she found that her suitcases weighed 13.35kg and 18.8kg . if she is allowed to carry up to 40kg