English Physicist Robert Hook in the year 1676 put forward the relation between the extension produced in a wire and the restoring force developed in it. The law formulated on the basis of this study is known as Hooke’s law. According to Hooke’s law, within the elastic limit, the stress developed is directly proportional on
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Consider a cubic crystal of lattice constant ‘a’. The density of the crystal = ρ Volume of the unit cell = a³ Eqn 1 Mass in each unit cell = ρa³ [latex] \left(\because \text { Density }=\frac{\text { Mass }}{\text { Volume }}\right) [/latex] The number of atoms per unit cell = n The atomic
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A face centred cubic structure consists of eight corner atoms and six face centred atoms. Examples: Copper, Nickel, Gold, Lead and Platinum. The arrangement of atoms in face centred cubic unit cell is shown in Fig. Number of atoms per unit cell An FCC unit cell consists of eight corner atoms and each and every
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Let us discuss some of the important parameters which are used to describe the crystal structure. Number of atoms per unit cell The total number of atoms present in an unit cell is known as number of atoms per unit cell. The distribution of atoms is different in lattice structure. This can be determined if
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Based on the crystal structure point of view, the solids can be classified into two categories namely: Crystalline (or) Crystals and Non-crystalline (or) Amorphous solids. Crystalline solids or Crystals Crystalline solids (or) crystals are those in which atoms (or) molecules are arranged in some systematic (or) regular pattern. In these materials, the arrangement of atoms
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1. What is Python? What are the benefits of using Python? Python is a programming language with objects, modules, threads, exceptions and automatic memory management. The benefits of pythons are that it is simple and easy, portable, extensible, build-in data structure and it is an open source. 2. What is PEP 8? PEP 8 is
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1. What is a JSP Page ? A Java Server Page (JSP) is a text document that contains two types of text: static data and JSP elements. Static data can be expressed in any text-based format, such as HTML or XML. JSP is a technology that mixes static content with dynamically generated content. 2. How
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1. Explain the architechure of a Servlet. The core abstraction that must be implemented by all servlets is the javax.servlet.Servlet interface. Each servlet must implement it either directly or indirectly, either by extending javax.servlet.GenericServlet or javax.servlet.http.HTTPServlet. Finally, each servlet is able to serve multiple requests in parallel using multithreading. 2. What is a Servlet ?
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1. What is RMI ? The Java Remote Method Invocation (Java RMI) is a Java API that performs the object-oriented equivalent of remote procedure calls (RPC), with support for direct transfer of serialized Java classes and distributed garbage collection. Remote Method Invocation (RMI) can also be seen as the process of activating a method on
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1. What is JDBC ? JDBC is an abstraction layer that allows users to choose between databases. JDBC enables developers to write database applications in Java, without having to concern themselves with the underlying details of a particular database. 2. Explain the role of Driver in JDBC. The JDBC Driver provides vendor-specific implementations of the
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