In everyday speech, “cross section” refers to a slice of an object. A particle physicist might use the word this way, but more often it is used to mean the probability that two particles will collide and react in a certain way.
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What is cross section in radiation physics?
cross section, in nuclear or subatomic particle physics, probability that a given atomic nucleus or subatomic particle will exhibit a specific reaction (for example, absorption, scattering, or fission) in relation to a particular species of incident particle.
What is cross section physics 10?
The area of a two-dimensional shape obtained when a three-dimensional object – such as a cube – is cut perpendicular to any given axis at a point is known as the cross sectional area in physics.
What is cross section formula?
This plane is further perpendicular to the axis of its symmetry; thus, this projection is called a cross-sectional area. The cross section area formula = l x w. The volume of Cross Section. The volume of the solid is defined by the integral of the area of cross-section.
What is another word for cross section?
In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for cross-section, like: transversion, transection, cross-sectional, parallelepiped, proportion, random-sample, sample, sampling, barn, semicircle and subimages.
What is the formula of area of cross section in physics?
Cross-Sectional Area of a Rectangular Solid Therefore, if a cross section is parallel to the top or bottom of the solid, the area of the cross-section is l ร w. If the cutting plane is parallel to one of the two sets the sides, the cross-sectional area is instead given by l ร h or w ร h.
What is cross section and longitudinal section?
Longitudinal studies and cross-sectional studies are two different types of research design. In a cross-sectional study you collect data from a population at a specific point in time; in a longitudinal study you repeatedly collect data from the same sample over an extended period of time.
What is cross section of a conductor?
If you cut directly and squarely across the width of a wire then you will look at the end and it looks like a circle. The area of that end is the cross sectionarea, which is Pi x r^2.
What is total cross section?
The total cross-section is the sum of all the partial cross-sections such as: elastic scattering cross-section (ฯs) inelastic scattering cross-section (ฯi) absorption cross-section (ฯa)
What is the difference between area and cross-sectional area?
Area is somewhat that is occupied by an object when it is resting on asurface i.e area is the space which isused by the object. Whereas cross-sectional area is an area which we obtain when the same object is cut into two pieces. The area of that perticular cross section is know ascross sectional area.
What is cross-sectional area in electric current?
The cross-sectional area of the wire A is the area of a circle of radius r, or of diameter d = 2r: A=ฯr2=ฯ(d2)2.
What is cross-sectional dimension?
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. For example, the cross-section of a cylinder – when sliced parallel to its base – is a circle.
Is it cross-section or cross-section?
If you refer to a cross-section of particular things or people, you mean a group of them that you think is typical or representative of all of them. I was surprised at the cross-section of people there. A cross-section of an object is what you would see if you could cut straight through the middle of it.
What is perimeter of cross-section?
The wetted perimeter is the perimeter of the cross sectional area that is “wet”. The length of line of the intersection of channel wetted surface with a cross sectional plane normal to the flow direction.
What is an example of cross-sectional study?
Another example of a cross-sectional study would be a medical study examining the prevalence of cancer amongst a defined population. The researcher can evaluate people of different ages, ethnicities, geographical locations, and social backgrounds.
How do you use cross section in a sentence?
Example Sentences a detailed cross section of the human brain The drawing showed the human brain in cross section. The class surveyed a cross section of the student body. The people in our neighborhood are a representative cross section of American society.
What is the opposite of a cross section?
Representing a plane made by cutting across something at right angles to its length. Antonyms. lengthwise vertical inclined.
What is cross section of a cylinder?
The vertical cross-section of a solid cylinder is a rectangle.
Is cross section the same as diameter?
Cross section is an area. Diameter is a linear measure. That cannot be the same.
What is the difference between cross section and transverse section?
The transverse section is done in a perpendicular alignment whereas the cross section is done not in the preferred direction. The transverse section is done by slicing the object by using the imaging technique whereas cross section is done by cutting the object in slices which makes the objects in the parallel.
How do you draw a cross section?
- How to Draw a Cross-Section of a Map.
- Take a thin strip of paper and place it along the transect line on the map.
- On a piece of graph paper, draw the horizontal axis of your graph exactly the same length as the transect A-B.
- Draw two vertical axes using a suitable scale.
Why do a cross-sectional study?
Because you only collect data at a single point in time, cross-sectional studies are relatively cheap and less time-consuming than other types of research. Cross-sectional studies allow you to collect data from a large pool of subjects and compare differences between groups.
How does cross-sectional area affect resistance?
A more detailed investigation shows that resistance and cross section area are inversely proportional . If you double the cross section area you half the resistance of the wire.
What is area of cross section of class 10th?
Cross section area is an area of an object if you view it as a 2D object. For example, imagine a perfectly rounded ball. If you look at the ball and view it as 2D object, you will see a circle with radius equal with the ball. Another example , imagine a cone.
What is the relation between length and area of cross section?
It is given that the length and area of the cross section of the conductor is doubled. This means that the new length and cross sectional area are 2l and 2A respectively. Therefore, the new resistance of the conductor is equal to Rโฒ=ฯ2l2A=ฯlA.