A spherical convex surface of radius of curvature 2/9 m separate two media of reflective index 4/3 and 3/2 . If an object is kept in first medium at Infinity than the position of image from spherical surfaces is

Q. A convex surface of radius of curvature 40cm separates two media of refractive indices 4/3 and 1.50. An object is kept in the first medium at a distance of 20cm from the surface. Calculate the position of the image.

Q. A spherical surface of radius of curvature 10 cm separates two media X and Y of refractive indices 3/2 and 4/3 respectively. Centre of the spherical surface lies in denser medium. An object is placed in medium X. For image to be real, the object distance must be

Q. A convex refracting surface of radius of curvature 15 cm separates two media of refractive indices 4/3 and 1.50. An object is kept in the first medium at a distance of 240 cm from the surface.The position of the image is:

Q. A spherical convex surface of radius of curvature $10\text{cm}$ has object and image in mediums of refractive index $1.0$ and $\frac{4}{3}$ respectively. Its power will be

Q. A concave spherical surface of radius of curvature $10\text{cm}$ separates two medium $X$ & $Y$ of refractive index $\frac{4}{3}$ & $\frac{3}{2}$ respectively. If the object is placed along principal axis in medium $X$ then