IIT JEE

An electromagnetic current that carries data from the source to the receiver is termed a signal. The data carried through the signal can be in the forms of voice, music, video, document, or a picture. According to the type of data transmitted, the required bandwidth differs—a signal wave results from changes or fluctuations in the […]

Signal Bandwidth refers to the difference between the frequencies of the upper band and the lower band in the continuous band frequency. For example, if the amplifier has a bandwidth of 2800 Hz, the amplifier can amplify the signal well (without any distortion between 300Hz to 3100Hz). In communication systems, the signal transmission channels can

The difference between the higher and lower frequencies in a continuous range of frequencies is referred to as the bandwidth. It is normally measured in hertz, and depending on the context, it may refer to either passband bandwidth or baseband bandwidth, or both simultaneously. Many fields, including electronics, information theory, digital communications, radio communications, signal

The dual nature of matter and the dual nature of radiation were revolutionary physics notions. Scientists discovered one of nature’s best-kept secrets around the turn of the twentieth century: wave particle duality, or the dual nature of matter and radiation. Everything is a wave and a particle at the same time. The Dual Nature of

Resonance meaning Resonance is the term which is associated with all kinds of vibrations or waves. It takes place with sound, mechanical, and electromagnetic wave functions. There are three things which together generate resonance. A system having a natural frequency of deriving force along with the frequency which is the same as the natural frequency

The radiation of light shows a dual nature that is wave and particle. Phenomenon like diffraction, interference and polarization can be explained on the basis of wave nature of light whereas phenomenon as like Photoelectric effect, Compton effect etc. can be explained only in terms of quantum theory of light. (Quantum theory of light states that

Introduction An alpha ray is a beam of alpha particles. An alpha molecule comprises two protons and two neutrons bound into a molecule indistinguishable from a helium core. It is radioactive. Like helium cores, Alpha particles have no net twist. A beta molecule, also known as beta ray as well as beta radiation is a

We all are aware of radioactive materials but have you ever wondered what makes them radioactive? A radioactive element is nothing but an unstable atom trying to regain its stability by releasing alpha, beta and gamma rays from the nucleus. Understanding the properties of alpha, beta and gamma rays help us understand a lot about

The propagation constant of a light wave can be changed by changing its frequency near the bandgap of a Bragg structure.. A stack of layers with alternate refractive indexes can form a Bragg structure. The propagation constant is the measurement of changes in the amplitude and phase of a sinusoidal electromagnetic wave as it propagates

Polarisation is a phenomenon generated by the wave nature of electromagnetic radiation, according to physics. Sunlight is an example of an electromagnetic wave that travels through the vacuum to reach the Earth. When an electric field interacts with a magnetic field the waves that are produced are known as electromagnetic waves. We will learn about two