JEE Main 2025 Physics question
In a long glass tube, mixture of two liquids A and B with refractive indices 1.3 and 1.4 respectively, forms a convex refractive meniscus towards A. If an object placed at 13 cm from the vertex of the meniscus in A forms an image with a magnification of '–2' then the radius of curvature of meniscus is :
Answer: (3)
Solution
Using refraction at spherical surface formula and magnification formula, R = 2/3 cm