# What is radius of curvature and focal length?

## What is radius of curvature and focal length?

The distance from the vertex to the center of curvature is known as the radius of curvature (represented by R). The radius of curvature is the radius of the sphere from which the mirror was cut. Finally, the distance from the mirror to the focal point is known as the focal length (represented by f).

## Is focal length inversely proportional to radius of curvature?

Definition: Radius of curvature of lens is the radius of the hollow sphere of glass of which the lens is a part. From this formula we can say that focal length of lens is inversely proportional to refractive index of material of lens medium.

What is the relation between focal length and radius of curvature of a concave mirror does the same relation holds for a convex mirror?

Answer Expert Verified Relation between the focal length and radius of curvature : For a spherical mirror of small aperture to its radius of curvature, the focal length of the mirror is one half of the radius of curvature of the mirror. This relation can be proved for both the mirrors that is concave and convex.

Is focal length twice the radius of curvature?

The radius of curvature is twice the focal length, so that R = 2|f| = 0.800 cm.

### What is relation between R and F?

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 pole 10th?

Pole: The centre of the reflecting surface of a spherical mirror. It lies on the surface of the mirror. The pole is usually represented by the letter P.

Which is inversely proportional to radius of curvature?

The magnitude of the normal acceleration is inversely proportional to the radius of curvature.

Is there a relationship between the curvature of the lens and the focal length?

Higher angles of curvature lead to shorter focal lengths due to the fact that light waves are refracted at a greater angle with respect to the optical axis of the lens.

## What is the relationship between radius of curvature and focal length class 10?

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 relation between F and 2F?

For a converging lens, parallel light rays will converge to a point. This is the focal point (F) of the converging lens. A point that is twice the distance from the lens as the focal point is labeled 2F.

What is the formula for radius of curvature?

Radius of Curvature Formula R= 1/K, where R is the radius of curvature and K is the curvature.

What is the relation between radius of curvature and focal length of a lens if the radius of curvature of a lens is 30cm find its focal length?

= 1/2 X 30 = 15cm.

### How is the focal length and radius of curvature related?

Focal length and radius of curvature are related as: f=2R. What is the relation between radius of curvature? In differential geometry, the radius of curvature, R, is the reciprocal of the curvature. For a curve, it equals the radius of the circular arc which best approximates the curve at that point.

### What happens to the radius of a circle?

A radius is the distance from the center of the circle to the outside of the circle. So if you effectively make the circle smaller, you also decrease the radius of the circle. If we increase the amount of curvature, we get a decrease in the amount of curvature radius.

What is the index of refraction for a diamond lens?

Most optical materials have an index of refraction in the range of 1.3 to 1.7 for visible light, so for most lenses, the focal length will be greater than the radius of curvature. Diamond, though, has an index of refraction of about 2.4, so such a lens will reverse the usual order.

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