What is the analog and digital communications? Draw the basic block diagram of transmitter and receivers. Answer: Analog and digital communication Analog communication : Analog communication is that types of communication in which the transmitted message or information signal is analog in nature. This means that in analog communication the modulating signal i.e. base‐band … [Read more...] about Analog and Digital Communications

# Engineering Physics

## Nuclear Fission and Nuclear Fusion

Explain Nuclear Fission and Nuclear Fusion. Answer: Nuclear Fission and Nuclear Fusion: Isotopes: are atoms that have same atomic number (number of protons) but different mass numbers (numbers of neutrons) or both elements having the same atomic number. are isotopes (17 Protons and 18, 20 Neutrons) Isobars: are atoms that have same mass numbers (numbers of neutrons) … [Read more...] about Nuclear Fission and Nuclear Fusion

## Semi Empirical Mass Formula

What is the Semi Empirical Mass Formula? Answer: Semi Empirical Mass Formula V. Weizsäcker proposed an equation in terms of atomic mass of the nuclide and series of binding energy term in 1935. This equation is known as Semi Empirical Mass Formula or V. Weizsäcker formula. This equation contains five factors that contribute to the binding energy of nuclei i.e. Surface … [Read more...] about Semi Empirical Mass Formula

## Nuclear Liquid Drop Model

What is the liquid drop model? Write Comparison and difference between Nucleus and Liquid Drop. Answer: Liquid Drop Model The liquid drop model is one of the models which explain the different properties of the nucleus. It was first proposed by George Gamow and then developed by Niels Bohr and J. A. Wheeler. According to Bohr et al the nucleus as a drop of incompressible … [Read more...] about Nuclear Liquid Drop Model

## Nuclear Force

What is the Nuclear Force? Answer: Nuclear Force: An absorption or emission of nuclear energy occurs in nuclear reactions or radioactive decay; those that absorb energy are called endothermic reactions and those that release energy are exothermic reactions. The best-known classes of exothermic nuclear change process are fission and fusion. The strong forces of attraction … [Read more...] about Nuclear Force