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Describe the general properties of nucleus.

General Properties of Nucleus: (i) Nuclear Size: From Rutherford’s work, the mean radius of nucleus is  and the radius of the atom is . Thus the radius of the nucleus is 10,000 times smaller than the radius of the atom. The empirical formula for the nuclear radius is, Here, A is the mass number,  is a constant. From …

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What is computer? What are the four elements of computer? What are the functions of a computer?

A computer is a multipurpose electronic device that can receive, store, process data and deliver information. A computer takes data such as numbers, text, images etc. as input and then process those data and converts those to useful information. Additionally, a computer can also store data and information both for future use. Also a computer can perform scheduled tasks. Computers are programmed devices. Computer programmers write programs or software for computer which actually takes input, process it and outputs information.

What is information systems? What are the components or resources of information systems?

Systems that collect, verify, store, process, report and update data to output valuable and useful information are called information systems. Information systems are being used from ancient time period. With the development of computing technologies and it’s uses, modern information systems are computer based information systems which can process billions of data to output desired information in seconds or minutes. Various types of computer based information systems are available.

Nature of bonding and properties of certain solids.

Diamond Diamond is an allotrope of carbon. Due to difference in bonding in its structure, it looks quite different from the other allotropes. Each carbon atom of diamond is sp3 hybridized. The four sp3 orbital arrange themselves in the four corners of a tetrahedron. Each orbital forms a bond with an orbital of another carbon …

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