In the situation shown the distance between the object O and its image is 24 cm. The object is 6 cm above water level and the beaker containing water upto 8 cm is kept on a plane mirror. Refractive index of the water is

The distance between a real object and its image in a convex mirror of focal length 12cm is 32cm. Find the size of image if the object size if 1cm.

A thin equiconvex lens of refractive index 3//2 is placed on a horizontal plane mirror as shown in figure. The space between the lens and the mirror is filled with a liquid of refractive index 4//3 . It is found that when a point object is placed 15 cm above the lens on its priincipal axis, the object coincides with its own image. Q. If another liquid is filled instead of water, the object and the image coincide at a distance 25 cm from the lens. Calculate the refractive index of the liquid.

Consider the situation shown in figure. A plane mirror is fixed at a height h above the bottom of a beaker containing water (refractive index mu ) up of a bottom formed by the mirror.Find the position of the image of bottom formed by the mirror.

A tank contains a transparent liquid of refractive index mu . The bottom of the tank is a plane mirror as shown. A person at P looks at an object O and its image in the mirror. The distance between the object and its image in the mirror as preceived by the person is

Consider a concave mirror and a convex lens (refractive index 1.5) of focal length 10 cm each separated by a distance of 50 cm in air (refractive index = 1) as shown in the Fig. An object is placed at a distance of 15 cm from the mirror. Its erect image formed by this combination has magnification M_1 . When this set up is kept in a medium of refractive index 7//6 , the magnification becomes M_2 . The magnitude ((M_2)/(M_1)) is : .

An object is placed in front of a convex mirror at a distance of 50cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30cm, it is found that there is no parallax between the images formed by the two mirrors. What is the radius of curvature of the convex mirror?

A beaker is filled with water as shown in figure (a). The bottom surface of the beaker is a concave mirror of large radius of curvature and small aperture. The height of water is h = 40 cm . It is found that when an object is placed 4 cm above the water surface, the image coincides with the object. Now the water level h is reduced to zero but there will still be some water left in the concave part of the mirror as shown in figure (b). The new height of the object h' above the new water surface so that the image again coincides with the object, will be (Refractive index of water = 4//3 )

A coin at the bottom of a trough containing water to a depth of 15 cm appears to be 3.75 cm raised above from the bottom. Calculate the refractive index of water.

A plane mirror is placed at a distance of 50 cm from a concave mirror of focal length 16 cm. Where should a short object be placed between the mirrors and facing both the mirrors so that its virtual image in the plane mirror coincides with the real image in concave mirror? What is the ratio of the sizes of the two images?

An object is placed 21 cm in front of a concave mirror of radius of curvature 10cm. A glass slabe of thickness 3cm and refractive index 1.5 is then placed close to the irror in the space between the object and the mirror. The distance of the near surface of the slabe from the mirror is 1cm. The final image from the mirror will be formed at