An object is placed at distance of 10 cm in air from the front surface of a thick glass slab of thickness 6 cm whose back surface has been silvered and is placed in air. The image is formed at a distance of 14 cm from the polished surface. The refractive index of the material of the thick mirror is
Consider the situation shown in the figure below. Water (μw=43) is filled in a beaker up to a height of 10 cm. A plane mirror is fixed at a height of 5 cm from the surface of the water. The distance of the image of an object O kept at the bottom of the beaker, from the mirror will be: