As shown in the figure, region BCDEF and ABFG are of refractive index `2.0 and 1.5` respectively. A particle O is kept at the mid of DH. Image of the object as seen by the eye is at a distance

Figure shows figure three transparent medi of refractive indices mu_1, mu_2 and mu_3 . A point object O is placed in the medium mu_2 . If the entire medium on the right of the spherical surface has refractive index mu_1 , the image forms at O. If this entire medium has refractive index mu_2 the image form at O''. In the situation shown

A lens of refractive index 1.5 is kept in a medium of refractive index 1.5. The refractive index of the lens with respect to the medium will be

The focal lengths of the objective and eye piece of a microscope are 2 cm and 5 cm respectively, and the distance between them is 20 cm . Find the distance of the object from the objective when the final image seen by the eye is 25 cm from the eye piece. What is the magnifying power ?

A glass hemisphere of radius R and of material having refractive index 1.5 is silvered on its flat face as shown in figure., A small object of height h is located at a distance 2R from the surface of hemisphere as shown in the figure. The final image will form.

A glass hemisphere of radius R and of material having refractive index 1.5 is silvered on its flat face as shown in figure., A small object of height h is located at a distance 2R from the surface of hemisphere as shown in the figure. The final image will form.

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 : .

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 : .

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 : .