Two Plano-convex of glass of refractive index 1 5 have radii of curvature 20cm and 30cm theh are placed in - Physics -

Question

Two Plano-convex of glass of refractive index 1 5 have radii of
curvature 20cm and 30cm theh are placed in contact with curved
surfaces towards each other and the space between then is filled
with a liquid of refractive index 4/3 is the focal length of the
combinations is

Mohd Qaseem Ansari · Accepted Answer

Two Plano-convex of glass of refractive index 1.5 have radii of curvature 20cm and 30cm.theh are placed in contact with curved surfaces towards each other and the space between then is filled with a liquid of refractive index 4/3 is.the focal length of the combinations is