Two similar thin equi-convex lenses

Sahay Sir > Question Answers > Two similar thin equi-convex lenses
Two similar thin equi-convex lenses, of focal length f each, are kept co-axially in contact with each other such that the focal length of the combination is F1​. When the space between the two lenses is filled with glycerin (which has the same refractive index (μ=1.5) as that of glass) then the equivalent focal length is F2​. The ratio F1​:F2​ will be
20
Aug
Two similar thin equi-convex lenses, of focal length f each, are kept co-axially in contact with each other such that the focal length of the combination is F1​. When the space between the two lenses is filled with glycerin (which has the same refractive index (μ=1.5) as that of glass) then the equivalent focal length [...]
Posted in: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
Tags: In total internal reflection when the angle of incidence is equal to the critical angle for the pair of medium in contact , of focal length f each , Two similar thin equi-convex lenses , what will be angle of refraction? ,