282501 If the radius of curvature of the curved surface of a plano-convex lens is \(50 \mathrm{~cm}\), its focal length is \((\mu=1.5)\)

282502 The focal length of the lens of refractive index \((\mu=1.5)\) in air is \(10 \mathrm{~cm}\). If air is replaced by water of \(\mu=\frac{4}{3}\), its focal length is

282503 Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 25 \(\mathrm{cm}\) and \(20 \mathrm{~cm}\). They are placed in contact with their curved surfaces towards each other and the space between them is filled with liquid of refractive index \(\frac{4}{3}\). Then the combination is

282504 The position of final image formed by the given lens combination from the third lens will be at a distance of \(\left(f_1=+10 \mathrm{~cm}, f_2=-10 \mathrm{~cm}, f_3=+30\right.\) cm)

282501 If the radius of curvature of the curved surface of a plano-convex lens is \(50 \mathrm{~cm}\), its focal length is \((\mu=1.5)\)

282502 The focal length of the lens of refractive index \((\mu=1.5)\) in air is \(10 \mathrm{~cm}\). If air is replaced by water of \(\mu=\frac{4}{3}\), its focal length is

282503 Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 25 \(\mathrm{cm}\) and \(20 \mathrm{~cm}\). They are placed in contact with their curved surfaces towards each other and the space between them is filled with liquid of refractive index \(\frac{4}{3}\). Then the combination is

282504 The position of final image formed by the given lens combination from the third lens will be at a distance of \(\left(f_1=+10 \mathrm{~cm}, f_2=-10 \mathrm{~cm}, f_3=+30\right.\) cm)

282501 If the radius of curvature of the curved surface of a plano-convex lens is \(50 \mathrm{~cm}\), its focal length is \((\mu=1.5)\)

282502 The focal length of the lens of refractive index \((\mu=1.5)\) in air is \(10 \mathrm{~cm}\). If air is replaced by water of \(\mu=\frac{4}{3}\), its focal length is

282503 Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 25 \(\mathrm{cm}\) and \(20 \mathrm{~cm}\). They are placed in contact with their curved surfaces towards each other and the space between them is filled with liquid of refractive index \(\frac{4}{3}\). Then the combination is

282504 The position of final image formed by the given lens combination from the third lens will be at a distance of \(\left(f_1=+10 \mathrm{~cm}, f_2=-10 \mathrm{~cm}, f_3=+30\right.\) cm)

282501 If the radius of curvature of the curved surface of a plano-convex lens is \(50 \mathrm{~cm}\), its focal length is \((\mu=1.5)\)

282502 The focal length of the lens of refractive index \((\mu=1.5)\) in air is \(10 \mathrm{~cm}\). If air is replaced by water of \(\mu=\frac{4}{3}\), its focal length is

282503 Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 25 \(\mathrm{cm}\) and \(20 \mathrm{~cm}\). They are placed in contact with their curved surfaces towards each other and the space between them is filled with liquid of refractive index \(\frac{4}{3}\). Then the combination is

282504 The position of final image formed by the given lens combination from the third lens will be at a distance of \(\left(f_1=+10 \mathrm{~cm}, f_2=-10 \mathrm{~cm}, f_3=+30\right.\) cm)