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## How do you find the radius of curvature of a plano convex lens?

In a plano-convex lens the radius of curvature of the plane side being R1=∞ is equal to infinity. As, the mirror needs to be part of the sphere and for it to be flat the radius of the sphere has to be infinity. Radius of curvature of the convex side is **R2=−20cm** as given in the question.

## What is the radius of curvature of the flat side of a plano convex lens?

In a Plano-convex lens, the radius of curvature is **10cm**.

## What is the radius of curvature of plano concave lens?

A plano-concave lens is made of glass of refractive index 1. 5 and the radius of curvature of its curved face is **100cm**.

## What is the formula of plano convex lens?

**f=R/2**.

## What if the radius of curvature of plano convex is increased?

In figure 3, you can see the drawing represents a plano-convex lens with a radius of curvature of 25.4mm. … (Figure 5). Just as with convex lenses, assuming the diameter of the lens remains constant, as the radius of curvature increases, the curvature of **the lens become more and more shallow**.

## What are plano convex lens?

Plano-convex lenses are **positive focal length elements that have one spherical surface and one flat surface**. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optic lenses are ideal for all-purpose focusing elements.

## What is a plano concave lens?

A plano concave lens is **an optical lens with one concave surface and one flat surface**. It has a negative focal length, and can be used for light projection, beam expansion, or to increase focal length of an optical system. … Our facility produces lenses from 2.33 mm to 1000 mm in diameter.

## What is the relation between focal length and radius of curvature of a plano-convex lens?

The focal length of a plano-convex lens **is equal to its radius of curvature**.