In the same way, sound spreads out in waves from the place where it is first made. The sound waves, like the ripples in the lake, become weaker the farther they travel. The energy of the waves becomes more spread out. Scientists use units called decibels to measure the intensity of sound.
Polymorphism in C#: Introduction and Types. The word polymorphism can be broken down into two different words, âpolyâ meaning many and âmorphâ meaning forms, and hence the meaning âhaving many formsâ. In C#, or for that matter in any object oriented programming language, polymorphism is used to imply one name with multiple functionality. In polymorphism we declare methods with the same name and different parameters in same class or methods with the same name and same parameters in different classes. Polymorphism has the ability to provide different implementation of methods that are implemented with the same name.
1 Any two groups of order one are isomorphic, where the isomorphism sends the unique element of one group to the unique element of the other. 2  For practical purposes, we think of there being only one group of order one, that we called the trivial group.3  The identity map from a group to itself is an isomorphism.uppose and are groups. A function is termed an isomorphism of groups if it satisfies the following equivalent conditions: 1  is injective, surjective and is a homomorphism of groups. 2  is a homomorphism of groups, and it has a two-sided inverse that is also a homomorphism of groups.