## How is curvature of lens related to focal length?

Focal length and radius of curvature are related as: f=2R.

## What is the formula of focal length and radius of curvature?

Radius of curvature is observed to be equal to twice the focal length for spherical mirrors with small apertures. Hence R = 2f .

**What is the formula of focal length of lens?**

The focal length is half the radius of curvature and is as f=R2 f = R 2 , where f is the focal length, and R is the radius of curvature.

### What is the formula of lens formula?

Let’s see how to use lens formula (1/v-1/u= 1/f) to locate images without having to draw ray diagrams. Created by Mahesh Shenoy.

### How do you calculate curvature of a lens?

Analytically, the focal length is described by the lens maker’s equation: 1/f = (n – 1)(1/R1 + 1/R2), where R1 and R2 are the radii of curvature, f is the focal length, and n is the index of refraction. Verify that your earlier measurements are consistent with this equation.

**What is relation between F and R?**

The relation between focal length (f) and radius of curvature (R) of a spherical mirror is that the focal length is equal to half of the radius of curvature i.e. f=R2.

#### WHAT IS lens formula state it?

Answer: The lens formula is a mathematical relation between the object distance u, image distance v and focal length f of a spherical lens. This formula is applicable to both convex and concave lenses. An object 5.0 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm.

#### What is V and U in mirror formula?

It is also known as mirror formula. In a spherical mirror: The distance between the object and the pole of the mirror is called Object distance(u). The distance between the image and the pole of the mirror is called Image distance(v).

**What is formula of convex lens?**

1. What is the Lens Formula for Convex Lens? According to the Convex Lens equation, 1/f = 1/v + 1/u. It relates the Focal Length of a Lens with the distance of an object placed in front of it and the image formed of that object.

## What is the curvature of the lens?

1) Curvature of a lens means the amount of bend in its refracting surface. So, more the curvature, larger the bend.