Power Of Combination Of Lens

Rules For Obtaining Images Formed By Concave Lenses |Lens Formula|Magnification Produced By Lenses |Practice Exercise|Power Of A Lens|Power Of A Combination Of Lenses|Summary

Image Formation From Concave Lens|Questions|Power Of Lens|Combination Of Lens|Questions

A convex lens of power +5 D is placed in contact with a concave lens of power -4 D. What is the power of combination and nature of lens combination ?

A convex lens of power 4D is kept in contact with a concave lens of power 3D, the effective power of combination will be

A convex lens of power 4D is kept in contact with a concave lens of power 3D, the effective power of combination will be

A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. What is the power in diopters of the combination is

A convex lens and a concave lens, each havaing same focal length of 25 cm, are put in contact to from a combination of lenses. The power of the combination (in diopter) is

A convex lens and a concave lens, each having same focal length of 25 cm , are put in contact to form a combination of lenses. The power in diopters of the combination is