For the thin convex lens, the radii of curvature are at 15 ~cm and 30 ~cm respectively. The focal length the lens is 20 ~cm. The refractive index of the material is:

Optics: JEE Main 2024 Physics question

JEE Main 2024 · 6 Apr, Evening shift · Q7058

JEE Main 20246 Apr, Evening shiftPhysicsHardOptics190× since 2002

For the thin convex lens, the radii of curvature are at

15 \mathrm{~cm}

and

30 \mathrm{~cm}

respectively. The focal length the lens is

20 \mathrm{~cm}

. The refractive index of the material is :

JEE Main 2024 · 6 Apr, Evening shift · Q7058

JEE Main 20246 Apr, Evening shiftPhysicsHardOptics190× since 2002

For the thin convex lens, the radii of curvature are at

15 \mathrm{~cm}

and

30 \mathrm{~cm}

respectively. The focal length the lens is

20 \mathrm{~cm}

. The refractive index of the material is :