282453 A point object is held above a thin equiconvex lens at its focus. The focal length is \(0.1 \mathrm{~m}\) and the lens rests on a horizontal thin plane mirror. The final image will be formed at

282454 A converging lens has a focal length of \(0.12 \mathrm{~m}\). To get an image of unit magnification the object should be placed at what distance from the converging lens?

282455 Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of \(20 \mathrm{~cm}\) are placed with their convex surfaces in contact at the center. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is:

282456 The radius of curvature of the convex face of a Plano-convex lens is \(15 \mathrm{~cm}\) and the refractive index of the material is 1.4. Then the power of the lens in Dioptre is

282465 The magnification (of positive sign) of an object placed in front of a convex lens of focal length \(20 \mathrm{~cm}\), it same in value but of negative sign when the object is moved a distance of \(20 \mathrm{~cm}\). Find the magnification.

282453 A point object is held above a thin equiconvex lens at its focus. The focal length is \(0.1 \mathrm{~m}\) and the lens rests on a horizontal thin plane mirror. The final image will be formed at

282454 A converging lens has a focal length of \(0.12 \mathrm{~m}\). To get an image of unit magnification the object should be placed at what distance from the converging lens?

282455 Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of \(20 \mathrm{~cm}\) are placed with their convex surfaces in contact at the center. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is:

282456 The radius of curvature of the convex face of a Plano-convex lens is \(15 \mathrm{~cm}\) and the refractive index of the material is 1.4. Then the power of the lens in Dioptre is

282465 The magnification (of positive sign) of an object placed in front of a convex lens of focal length \(20 \mathrm{~cm}\), it same in value but of negative sign when the object is moved a distance of \(20 \mathrm{~cm}\). Find the magnification.

282453 A point object is held above a thin equiconvex lens at its focus. The focal length is \(0.1 \mathrm{~m}\) and the lens rests on a horizontal thin plane mirror. The final image will be formed at

282454 A converging lens has a focal length of \(0.12 \mathrm{~m}\). To get an image of unit magnification the object should be placed at what distance from the converging lens?

282455 Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of \(20 \mathrm{~cm}\) are placed with their convex surfaces in contact at the center. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is:

282456 The radius of curvature of the convex face of a Plano-convex lens is \(15 \mathrm{~cm}\) and the refractive index of the material is 1.4. Then the power of the lens in Dioptre is

282465 The magnification (of positive sign) of an object placed in front of a convex lens of focal length \(20 \mathrm{~cm}\), it same in value but of negative sign when the object is moved a distance of \(20 \mathrm{~cm}\). Find the magnification.

282453 A point object is held above a thin equiconvex lens at its focus. The focal length is \(0.1 \mathrm{~m}\) and the lens rests on a horizontal thin plane mirror. The final image will be formed at

282454 A converging lens has a focal length of \(0.12 \mathrm{~m}\). To get an image of unit magnification the object should be placed at what distance from the converging lens?

282455 Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of \(20 \mathrm{~cm}\) are placed with their convex surfaces in contact at the center. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is:

282456 The radius of curvature of the convex face of a Plano-convex lens is \(15 \mathrm{~cm}\) and the refractive index of the material is 1.4. Then the power of the lens in Dioptre is

282465 The magnification (of positive sign) of an object placed in front of a convex lens of focal length \(20 \mathrm{~cm}\), it same in value but of negative sign when the object is moved a distance of \(20 \mathrm{~cm}\). Find the magnification.

282453 A point object is held above a thin equiconvex lens at its focus. The focal length is \(0.1 \mathrm{~m}\) and the lens rests on a horizontal thin plane mirror. The final image will be formed at

282454 A converging lens has a focal length of \(0.12 \mathrm{~m}\). To get an image of unit magnification the object should be placed at what distance from the converging lens?

282455 Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of \(20 \mathrm{~cm}\) are placed with their convex surfaces in contact at the center. The intervening space is filled with oil of refractive index 1.7. The focal length of the combination is:

282456 The radius of curvature of the convex face of a Plano-convex lens is \(15 \mathrm{~cm}\) and the refractive index of the material is 1.4. Then the power of the lens in Dioptre is

282465 The magnification (of positive sign) of an object placed in front of a convex lens of focal length \(20 \mathrm{~cm}\), it same in value but of negative sign when the object is moved a distance of \(20 \mathrm{~cm}\). Find the magnification.