 # BookRiff

If you don’t like to read, you haven’t found the right book

## Can you cross section a sphere?

Spheres are perfectly round geometric objects. Spheres are NOT polyhedra. The intersection of a plane with a sphere is a circle (or a point if tangent to sphere). All cross sections of a sphere are circles.

What shape will you get if you take a cross section of a sphere?

circles
All cross-sections of a sphere are circles.

### How do you calculate cross section scattering?

In cases where the radiation is being treated as a continuous classical wave, as in the case of long-wavelength electromagnetic radiation, scattering cross-sections are determined by dividing the power of the scattered wave by the intensity of the incident wave.

What is cross section for elastic scattering?

Frequently, the elastic scattering cross section is obtained by subtracting the nonelastic cross section from the total cross section. Such contamination is generally due to contributions from inelastic scattering to low-lying levels that were not resolved in the experiment.

#### What is the cross section area of sphere?

The cross section, of a sphere formed by a plane intersecting the sphere at an equator, is a circle of the same radius as that of the sphere itself (as may be seen from picture below). ≅380.134 square inches.

What is the cross section of a circle?

The cross-sectional area of a cylinder is equal to the area of a circle if cut parallel to the circular base. The cross-sectional area is the area of a two-dimensional shape that is obtained when a three-dimensional object – such as a cylinder – is sliced perpendicular to some specified axis at a point.

## What is a cross section of a shape?

A cross-section is a plane section that is a section of a three-dimensional object that is parallel to one of its planes of symmetry or perpendicular to one of its lines of symmetry. Describe shapes formed by cross-sections (square, rectangle, triangle, etc).

What is total scattering cross section?

The total scattering cross section, σn, is defined as the total power per unit area scattered in all directions divided by the power per unit area of the incident beam.

### What is cross-section formula?

In order to calculate the area of a cross-section, you need to look at them as basic shapes. For instance, a tube is a concentric circle. Therefore, for a tube with inner and outer diameter ( d and D ) having thickness t , the area of cross-section can be written as: AC = π * (D2 – d2) / 4.

What is the formula of cross-section area?

Cross-Sectional Area of a Rectangular Solid The volume of any rectangular solid, including a cube, is the area of its base (length times width) multiplied by its height: V = l × w × h. Therefore, if a cross section is parallel to the top or bottom of the solid, the area of the cross-section is l × w.

#### Which is the best description of the scattering cross section?

Scattering Cross Section. The concept of cross section, as its name suggests, is that of effective area for collision. The cross section of a spherical target is. In aiming a beam of particles at a target which is much smaller than the beam, as in the Rutherford scattering experiment, the cross section takes on a statistical nature.

What is the scattering cross section of a projectile?

For an experiment where projectiles of charge Z =and kinetic energy KE = MeV are scattered by nuclei of atomic number Z=and mass number A = , the scattering cross section is fm2= barns. If the scattering target is in the form of a thin foil of thickness L = x 10^m with density = gm/cm3,

## How is the cross section of a spherical target determined?

The cross section of a spherical target is The units of cross section are then area units, but for nuclear scattering the effective area is on the order of the cross sectional area of a nucleus. For a gold nucleus of mass number A=197, the radius determined from the nuclear radius relationshipis about 7 fermis.

How many Fermis are in a scattering cross section?

For a gold nucleus of mass number A=197, the radius determined from the nuclear radius relationship is about 7 fermis. The most common unit for cross section for nuclear scattering interactions is the barn.