Question

A concave mirror of radius R is kept on a horizontal table (figure 18-E2). Water (refractive index = μ) is poured into it upto a height h. Where should an object be placed so that its image is formed on itself ?

Answer 1

Let the object be placed at a height x above the surface of the water.
The apparent position of the object with respect to mirror should be at the centre
of curvature so that the image is formed at the same position.