Question

What is the shape of lens C as shown in figure?

Answer 1

Hint : Plano-convex lenses have one spherical surface and one flat surface and have a positive focal length. These lenses are intended for non-critical applications that require infinite conjugate (parallel light) imaging or basic imaging. These optic lenses are perfect for focusing elements that need to be used in a variety of situations.

Complete step-by-step solution:
Lens C has a flat side and a convex side, with thicker glass in the middle and thinner glass at the ends. As a result, it's known as a plano-convex lens. Lens C has a plano-convex shape.
For focusing parallel rays of light to a single point, plano-convex lenses are the ideal option. They are capable of focusing, collecting, and collimating light. In circumstances where the object and image are at uneven distances from the lens, the asymmetry of these lenses reduces spherical aberration.
A plano-convex lense's two surfaces work together to focus parallel light rays to a positive focal point. The curved surface of a plano-convex lens has a focusing or de-focusing impact on light rays, but the plane surface does not.
\[f = \dfrac{R}{2}\] is the formula for a plano-convex lens.is the formula for a plano-convex lens.

Note: For focusing parallel rays of light to a single point, plano-convex lenses are the ideal option. They are capable of focusing, collecting, and collimating light. In circumstances where the object and image are at uneven distances from the lens, the asymmetry of these lenses reduces spherical aberration.