Rankers Physics

Lens Makers Formula/ Len's Formula: Practice Problem & Solution

A convex lens is made up of three different materials as shown in the figure. For a point object placed on its axis, the number of images formed are : Lens Makers Formula/ Len's Formula diagram: A convex lens is made up of three
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Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. Assertion (A): The image focus (\(2^{\text{nd}}\) focus) and the object focus (\(1^{\text{st}}\) focus) are on the opposite side of the biconvex or biconcave lens. Reason (R): The radii of curvature of a biconvex lens and biconcave lens are on the opposite side of the lens.  
2. The refractive index of material of a plano-convex lens, if the radius of curvature of convex surface is \(10\text{ cm}\) and focal length of lens is \(30\text{ cm}\) is
3. A convex lens of focal length 50 cm forms a real image of size three times of size of object then position of object will be :
4. An object is mounted on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens placed between these walls. The lens is kept at distance \(x\) in front of the second wall. The required focal length of the lens will be
5. Assertion (A): A convex lens suffers from chromatic aberration. Reason (R): All parallel rays of monochromatic light passing through a convex lens do not come to a focus at the same point.