282434 If the focal length of a convex lens is \(50 \mathrm{~cm}\), which one of the following is its power?

282435 There is a small air bubble at the centre of a solid glass sphere of radius \(r\) and refractive index \(\mu\). What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

282436 A point source is located at a distance of \(20 \mathrm{~cm}\) from the front surface of a symmetrical biconvex lens made of glass \((n=1.5)\). The lens is \(5.0 \mathrm{~cm}\) thick and the curvature radius of its surface is \(5.0 \mathrm{~cm}\). The distance at which the image of the source formed beyond the rear surface of the lens is

282437 Two identical equiconvex lenses, each of focal length ' \(f\) ' are placed side by side in contact with each other with a layer of water in between them as shown in figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length ' \(F\) ' is related to ' \(f\) '?

282438 Focal length, radius of curvature and power of a plane mirror respectively are

282434 If the focal length of a convex lens is \(50 \mathrm{~cm}\), which one of the following is its power?

282435 There is a small air bubble at the centre of a solid glass sphere of radius \(r\) and refractive index \(\mu\). What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

282436 A point source is located at a distance of \(20 \mathrm{~cm}\) from the front surface of a symmetrical biconvex lens made of glass \((n=1.5)\). The lens is \(5.0 \mathrm{~cm}\) thick and the curvature radius of its surface is \(5.0 \mathrm{~cm}\). The distance at which the image of the source formed beyond the rear surface of the lens is

282437 Two identical equiconvex lenses, each of focal length ' \(f\) ' are placed side by side in contact with each other with a layer of water in between them as shown in figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length ' \(F\) ' is related to ' \(f\) '?

282438 Focal length, radius of curvature and power of a plane mirror respectively are

282434 If the focal length of a convex lens is \(50 \mathrm{~cm}\), which one of the following is its power?

282435 There is a small air bubble at the centre of a solid glass sphere of radius \(r\) and refractive index \(\mu\). What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

282436 A point source is located at a distance of \(20 \mathrm{~cm}\) from the front surface of a symmetrical biconvex lens made of glass \((n=1.5)\). The lens is \(5.0 \mathrm{~cm}\) thick and the curvature radius of its surface is \(5.0 \mathrm{~cm}\). The distance at which the image of the source formed beyond the rear surface of the lens is

282437 Two identical equiconvex lenses, each of focal length ' \(f\) ' are placed side by side in contact with each other with a layer of water in between them as shown in figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length ' \(F\) ' is related to ' \(f\) '?

282438 Focal length, radius of curvature and power of a plane mirror respectively are

282434 If the focal length of a convex lens is \(50 \mathrm{~cm}\), which one of the following is its power?

282435 There is a small air bubble at the centre of a solid glass sphere of radius \(r\) and refractive index \(\mu\). What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

282436 A point source is located at a distance of \(20 \mathrm{~cm}\) from the front surface of a symmetrical biconvex lens made of glass \((n=1.5)\). The lens is \(5.0 \mathrm{~cm}\) thick and the curvature radius of its surface is \(5.0 \mathrm{~cm}\). The distance at which the image of the source formed beyond the rear surface of the lens is

282437 Two identical equiconvex lenses, each of focal length ' \(f\) ' are placed side by side in contact with each other with a layer of water in between them as shown in figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length ' \(F\) ' is related to ' \(f\) '?

282438 Focal length, radius of curvature and power of a plane mirror respectively are

282434 If the focal length of a convex lens is \(50 \mathrm{~cm}\), which one of the following is its power?

282435 There is a small air bubble at the centre of a solid glass sphere of radius \(r\) and refractive index \(\mu\). What will be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

282436 A point source is located at a distance of \(20 \mathrm{~cm}\) from the front surface of a symmetrical biconvex lens made of glass \((n=1.5)\). The lens is \(5.0 \mathrm{~cm}\) thick and the curvature radius of its surface is \(5.0 \mathrm{~cm}\). The distance at which the image of the source formed beyond the rear surface of the lens is

282437 Two identical equiconvex lenses, each of focal length ' \(f\) ' are placed side by side in contact with each other with a layer of water in between them as shown in figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length ' \(F\) ' is related to ' \(f\) '?

282438 Focal length, radius of curvature and power of a plane mirror respectively are