If final image after two refractions through the lens and one reflection from the mirror forms at the same point O. Refrative index of the material of the lens `mu=3//2`. Then find d.

A parallel beam of light passes parallel to the principal axis and falls on one face of a thin convex lens offocal length f and after two internal reflections from the second face forms a real image. The distance of image from lens if the reflactive index of material of lens is 1.5 :

Plane surface of a thin planoconvex lens reflects 50% of light, while the curved surface is completely transparent, if final image of O after refraction through lens coinsides with the image formed due to partial reflection from plane surface. if distance (in m) between O and lens is x then find x//4

Plane surface of a thin planoconvex lens reflects 50% of light, while the curved surface is completely transparent, if final image of O after refraction through lens coinsides with the image formed due to partial reflection from plane surface. if distance (in m) between O and lens is x then find x//4

In figure the direct image formed by the lens (f = 10 cm) of an object placed at O and that formed after reflection from the spherical mirror are formed at the same point 'O'. What is the radius of curvature of the mirror?

A lens forms a sharp image on a screen. On inserting a parallel sided glass slab between the lens and the screen, it is found necessary to move the screen a distance d away the lens in order for the image to be sharp again. If the refractive index of the material of the slab is mu , the thickness of the slab is

A lens forms a sharp image on a screen. On inserting a parallel sided glass slab between the lens and the screen, it is found necessary to move the screen a distance d away the lens in order for the image to be sharp again. If the refractive index of the material of the slab is mu , the thickness of the slab is

The distance between a convex lens and a plane mirror is 10 cm. The parallel rays incident on the convex lens after reflection from the mirror forms image at the potical centre of the lens. Focal length of lens will be

In Fig.2.56 ,the direct image formed by the lens(f=10cm) of an object placed of O and that formed after reflection from the spherical mirror are formed at same point.What is the radius of curvature of the mirror? .

The distance between a convex lens and a plane mirror is 10 cm. The parallel rays incident on the convex lens after reflection from the mirror form image at the optical centre of the lens. Focal length of lens will be